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Finding the Fourth Proportional to 40,697,889,782.40, 61,046,834,673.60 and 40,697,889,782.40

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Solution

The fourth proportional to 40,697,889,782.40, 61,046,834,673.60 and 40,697,889,782.40 is: 61,046,834,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,697,889,782.40 : 61,046,834,673.60 = 40,697,889,782.40 : x
  2. Step 2: Convert to fraction form
    40,697,889,782.40/61,046,834,673.60 = 40,697,889,782.40/x
  3. Step 3: Cross multiply
    40,697,889,782.40x = 61,046,834,673.60 × 40,697,889,782.40
  4. Step 4: Simplify right side
    40,697,889,782.40x = 2,484,477,349,110,567,403,520
  5. Step 5: Solve for x
    x = 2,484,477,349,110,567,403,520/40,697,889,782.40
  6. Step 6: Final answer
    x = 61,046,834,673.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.