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Finding the Fourth Proportional to 125,252.70, 172,870.65 and 95,137.71

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Solution

The fourth proportional to 125,252.70, 172,870.65 and 95,137.71 is: 131,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,252.70 : 172,870.65 = 95,137.71 : x
  2. Step 2: Convert to fraction form
    125,252.70/172,870.65 = 95,137.71/x
  3. Step 3: Cross multiply
    125,252.70x = 172,870.65 × 95,137.71
  4. Step 4: Simplify right side
    125,252.70x = 16,446,517,767.21
  5. Step 5: Solve for x
    x = 16,446,517,767.21/125,252.70
  6. Step 6: Final answer
    x = 131,306.69

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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.