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Finding the Fourth Proportional to 99,845,129.60, 149,767,694.40 and 88,498,390.40

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Solution

The fourth proportional to 99,845,129.60, 149,767,694.40 and 88,498,390.40 is: 132,747,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,845,129.60 : 149,767,694.40 = 88,498,390.40 : x
  2. Step 2: Convert to fraction form
    99,845,129.60/149,767,694.40 = 88,498,390.40/x
  3. Step 3: Cross multiply
    99,845,129.60x = 149,767,694.40 × 88,498,390.40
  4. Step 4: Simplify right side
    99,845,129.60x = 13,254,199,888,319,096
  5. Step 5: Solve for x
    x = 13,254,199,888,319,096/99,845,129.60
  6. Step 6: Final answer
    x = 132,747,585.60

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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.