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Finding the Fourth Proportional to 88,573,928.60, 132,860,892.90 and 80,496,025.40

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Solution

The fourth proportional to 88,573,928.60, 132,860,892.90 and 80,496,025.40 is: 120,744,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,928.60 : 132,860,892.90 = 80,496,025.40 : x
  2. Step 2: Convert to fraction form
    88,573,928.60/132,860,892.90 = 80,496,025.40/x
  3. Step 3: Cross multiply
    88,573,928.60x = 132,860,892.90 × 80,496,025.40
  4. Step 4: Simplify right side
    88,573,928.60x = 10,694,773,809,545,080
  5. Step 5: Solve for x
    x = 10,694,773,809,545,080/88,573,928.60
  6. Step 6: Final answer
    x = 120,744,038.10

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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.