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Finding the Fourth Proportional to 70,656,000.40, 105,987,499.80 and 36,643,776.40

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Solution

The fourth proportional to 70,656,000.40, 105,987,499.80 and 36,643,776.40 is: 54,967,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656,000.40 : 105,987,499.80 = 36,643,776.40 : x
  2. Step 2: Convert to fraction form
    70,656,000.40/105,987,499.80 = 36,643,776.40/x
  3. Step 3: Cross multiply
    70,656,000.40x = 105,987,499.80 × 36,643,776.40
  4. Step 4: Simplify right side
    70,656,000.40x = 3,883,782,243,866,244.50
  5. Step 5: Solve for x
    x = 3,883,782,243,866,244.50/70,656,000.40
  6. Step 6: Final answer
    x = 54,967,479.36

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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.