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Finding the Fourth Proportional to 59,426,752.28, 81,978,736.36 and 38,812,265.24

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Solution

The fourth proportional to 59,426,752.28, 81,978,736.36 and 38,812,265.24 is: 53,541,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,426,752.28 : 81,978,736.36 = 38,812,265.24 : x
  2. Step 2: Convert to fraction form
    59,426,752.28/81,978,736.36 = 38,812,265.24/x
  3. Step 3: Cross multiply
    59,426,752.28x = 81,978,736.36 × 38,812,265.24
  4. Step 4: Simplify right side
    59,426,752.28x = 3,181,780,459,644,352.50
  5. Step 5: Solve for x
    x = 3,181,780,459,644,352.50/59,426,752.28
  6. Step 6: Final answer
    x = 53,541,213.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.