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Finding the Fourth Proportional to 125,297.68, 187,497.54 and 108,488.68

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Solution

The fourth proportional to 125,297.68, 187,497.54 and 108,488.68 is: 162,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,297.68 : 187,497.54 = 108,488.68 : x
  2. Step 2: Convert to fraction form
    125,297.68/187,497.54 = 108,488.68/x
  3. Step 3: Cross multiply
    125,297.68x = 187,497.54 × 108,488.68
  4. Step 4: Simplify right side
    125,297.68x = 20,341,360,617.85
  5. Step 5: Solve for x
    x = 20,341,360,617.85/125,297.68
  6. Step 6: Final answer
    x = 162,344.27

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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.