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Finding the Fourth Proportional to 125,960.72, 188,532.84 and 92,673.68

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Solution

The fourth proportional to 125,960.72, 188,532.84 and 92,673.68 is: 138,710.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,960.72 : 188,532.84 = 92,673.68 : x
  2. Step 2: Convert to fraction form
    125,960.72/188,532.84 = 92,673.68/x
  3. Step 3: Cross multiply
    125,960.72x = 188,532.84 × 92,673.68
  4. Step 4: Simplify right side
    125,960.72x = 17,472,032,083.65
  5. Step 5: Solve for x
    x = 17,472,032,083.65/125,960.72
  6. Step 6: Final answer
    x = 138,710.16

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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.