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Finding the Fourth Proportional to 88,978,821.20, 133,468,231.80 and 37,862,507.60

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Solution

The fourth proportional to 88,978,821.20, 133,468,231.80 and 37,862,507.60 is: 56,793,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,978,821.20 : 133,468,231.80 = 37,862,507.60 : x
  2. Step 2: Convert to fraction form
    88,978,821.20/133,468,231.80 = 37,862,507.60/x
  3. Step 3: Cross multiply
    88,978,821.20x = 133,468,231.80 × 37,862,507.60
  4. Step 4: Simplify right side
    88,978,821.20x = 5,053,441,940,886,062
  5. Step 5: Solve for x
    x = 5,053,441,940,886,062/88,978,821.20
  6. Step 6: Final answer
    x = 56,793,761.40

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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.