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Finding the Fourth Proportional to 125,322.77, 187,909.03 and 39,896.73

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Solution

The fourth proportional to 125,322.77, 187,909.03 and 39,896.73 is: 59,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,322.77 : 187,909.03 = 39,896.73 : x
  2. Step 2: Convert to fraction form
    125,322.77/187,909.03 = 39,896.73/x
  3. Step 3: Cross multiply
    125,322.77x = 187,909.03 × 39,896.73
  4. Step 4: Simplify right side
    125,322.77x = 7,496,955,834.47
  5. Step 5: Solve for x
    x = 7,496,955,834.47/125,322.77
  6. Step 6: Final answer
    x = 59,821.18

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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.