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Finding the Fourth Proportional to 88,591,985.60, 132,887,978.40 and 54,402,468.80

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Solution

The fourth proportional to 88,591,985.60, 132,887,978.40 and 54,402,468.80 is: 81,603,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,591,985.60 : 132,887,978.40 = 54,402,468.80 : x
  2. Step 2: Convert to fraction form
    88,591,985.60/132,887,978.40 = 54,402,468.80/x
  3. Step 3: Cross multiply
    88,591,985.60x = 132,887,978.40 × 54,402,468.80
  4. Step 4: Simplify right side
    88,591,985.60x = 7,229,434,098,801,074
  5. Step 5: Solve for x
    x = 7,229,434,098,801,074/88,591,985.60
  6. Step 6: Final answer
    x = 81,603,703.20

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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.