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Finding the Fourth Proportional to 125,297.65, 187,497.50 and 108,488.64

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Solution

The fourth proportional to 125,297.65, 187,497.50 and 108,488.64 is: 162,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,297.65 : 187,497.50 = 108,488.64 : x
  2. Step 2: Convert to fraction form
    125,297.65/187,497.50 = 108,488.64/x
  3. Step 3: Cross multiply
    125,297.65x = 187,497.50 × 108,488.64
  4. Step 4: Simplify right side
    125,297.65x = 20,341,349,549.32
  5. Step 5: Solve for x
    x = 20,341,349,549.32/125,297.65
  6. Step 6: Final answer
    x = 162,344.23

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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.