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Finding the Fourth Proportional to 88,573,651.80, 132,860,477.70 and 81,558,630.60

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Solution

The fourth proportional to 88,573,651.80, 132,860,477.70 and 81,558,630.60 is: 122,337,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,651.80 : 132,860,477.70 = 81,558,630.60 : x
  2. Step 2: Convert to fraction form
    88,573,651.80/132,860,477.70 = 81,558,630.60/x
  3. Step 3: Cross multiply
    88,573,651.80x = 132,860,477.70 × 81,558,630.60
  4. Step 4: Simplify right side
    88,573,651.80x = 10,835,918,622,073,838
  5. Step 5: Solve for x
    x = 10,835,918,622,073,838/88,573,651.80
  6. Step 6: Final answer
    x = 122,337,945.90

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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.