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Finding the Fourth Proportional to 88,573,791.60, 132,860,687.40 and 80,495,888.40

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Solution

The fourth proportional to 88,573,791.60, 132,860,687.40 and 80,495,888.40 is: 120,743,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,791.60 : 132,860,687.40 = 80,495,888.40 : x
  2. Step 2: Convert to fraction form
    88,573,791.60/132,860,687.40 = 80,495,888.40/x
  3. Step 3: Cross multiply
    88,573,791.60x = 132,860,687.40 × 80,495,888.40
  4. Step 4: Simplify right side
    88,573,791.60x = 10,694,739,065,697,688
  5. Step 5: Solve for x
    x = 10,694,739,065,697,688/88,573,791.60
  6. Step 6: Final answer
    x = 120,743,832.60

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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.