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Finding the Fourth Proportional to 156,574.90, 216,084.05 and 88,591.87

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Solution

The fourth proportional to 156,574.90, 216,084.05 and 88,591.87 is: 122,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,574.90 : 216,084.05 = 88,591.87 : x
  2. Step 2: Convert to fraction form
    156,574.90/216,084.05 = 88,591.87/x
  3. Step 3: Cross multiply
    156,574.90x = 216,084.05 × 88,591.87
  4. Step 4: Simplify right side
    156,574.90x = 19,143,290,066.67
  5. Step 5: Solve for x
    x = 19,143,290,066.67/156,574.90
  6. Step 6: Final answer
    x = 122,262.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.