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Finding the Fourth Proportional to 125,252.96, 172,845.51 and 71,536.87

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Solution

The fourth proportional to 125,252.96, 172,845.51 and 71,536.87 is: 98,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,252.96 : 172,845.51 = 71,536.87 : x
  2. Step 2: Convert to fraction form
    125,252.96/172,845.51 = 71,536.87/x
  3. Step 3: Cross multiply
    125,252.96x = 172,845.51 × 71,536.87
  4. Step 4: Simplify right side
    125,252.96x = 12,364,825,914.73
  5. Step 5: Solve for x
    x = 12,364,825,914.73/125,252.96
  6. Step 6: Final answer
    x = 98,718.83

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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.