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Finding the Fourth Proportional to 54,444,652.10, 81,666,978.15 and 42,115,220.90

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Solution

The fourth proportional to 54,444,652.10, 81,666,978.15 and 42,115,220.90 is: 63,172,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,444,652.10 : 81,666,978.15 = 42,115,220.90 : x
  2. Step 2: Convert to fraction form
    54,444,652.10/81,666,978.15 = 42,115,220.90/x
  3. Step 3: Cross multiply
    54,444,652.10x = 81,666,978.15 × 42,115,220.90
  4. Step 4: Simplify right side
    54,444,652.10x = 3,439,422,825,022,723.50
  5. Step 5: Solve for x
    x = 3,439,422,825,022,723.50/54,444,652.10
  6. Step 6: Final answer
    x = 63,172,831.35

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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.