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Finding the Fourth Proportional to 125,036.69, 187,961.45 and 100,347.27

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Solution

The fourth proportional to 125,036.69, 187,961.45 and 100,347.27 is: 150,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,036.69 : 187,961.45 = 100,347.27 : x
  2. Step 2: Convert to fraction form
    125,036.69/187,961.45 = 100,347.27/x
  3. Step 3: Cross multiply
    125,036.69x = 187,961.45 × 100,347.27
  4. Step 4: Simplify right side
    125,036.69x = 18,861,417,871.01
  5. Step 5: Solve for x
    x = 18,861,417,871.01/125,036.69
  6. Step 6: Final answer
    x = 150,847.07

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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.