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Finding the Fourth Proportional to 125,188.72, 187,813.80 and 36,443.02

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Solution

The fourth proportional to 125,188.72, 187,813.80 and 36,443.02 is: 54,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,188.72 : 187,813.80 = 36,443.02 : x
  2. Step 2: Convert to fraction form
    125,188.72/187,813.80 = 36,443.02/x
  3. Step 3: Cross multiply
    125,188.72x = 187,813.80 × 36,443.02
  4. Step 4: Simplify right side
    125,188.72x = 6,844,502,069.68
  5. Step 5: Solve for x
    x = 6,844,502,069.68/125,188.72
  6. Step 6: Final answer
    x = 54,673.47

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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.