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Finding the Fourth Proportional to 125,036.93, 187,961.82 and 100,347.52

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Solution

The fourth proportional to 125,036.93, 187,961.82 and 100,347.52 is: 150,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,036.93 : 187,961.82 = 100,347.52 : x
  2. Step 2: Convert to fraction form
    125,036.93/187,961.82 = 100,347.52/x
  3. Step 3: Cross multiply
    125,036.93x = 187,961.82 × 100,347.52
  4. Step 4: Simplify right side
    125,036.93x = 18,861,502,491.69
  5. Step 5: Solve for x
    x = 18,861,502,491.69/125,036.93
  6. Step 6: Final answer
    x = 150,847.45

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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.