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Finding the Fourth Proportional to 125,244.16, 187,866.10 and 30,473.76

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Solution

The fourth proportional to 125,244.16, 187,866.10 and 30,473.76 is: 45,710.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,244.16 : 187,866.10 = 30,473.76 : x
  2. Step 2: Convert to fraction form
    125,244.16/187,866.10 = 30,473.76/x
  3. Step 3: Cross multiply
    125,244.16x = 187,866.10 × 30,473.76
  4. Step 4: Simplify right side
    125,244.16x = 5,724,986,443.54
  5. Step 5: Solve for x
    x = 5,724,986,443.54/125,244.16
  6. Step 6: Final answer
    x = 45,710.61

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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.