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Finding the Fourth Proportional to 105,173,618.40, 157,461,829.20 and 105,173,618.40

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Solution

The fourth proportional to 105,173,618.40, 157,461,829.20 and 105,173,618.40 is: 157,461,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173,618.40 : 157,461,829.20 = 105,173,618.40 : x
  2. Step 2: Convert to fraction form
    105,173,618.40/157,461,829.20 = 105,173,618.40/x
  3. Step 3: Cross multiply
    105,173,618.40x = 157,461,829.20 × 105,173,618.40
  4. Step 4: Simplify right side
    105,173,618.40x = 16,560,830,336,846,776
  5. Step 5: Solve for x
    x = 16,560,830,336,846,776/105,173,618.40
  6. Step 6: Final answer
    x = 157,461,829.20

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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.