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Finding the Fourth Proportional to 125,262.33, 187,891.33 and 42,156.33

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Solution

The fourth proportional to 125,262.33, 187,891.33 and 42,156.33 is: 63,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,262.33 : 187,891.33 = 42,156.33 : x
  2. Step 2: Convert to fraction form
    125,262.33/187,891.33 = 42,156.33/x
  3. Step 3: Cross multiply
    125,262.33x = 187,891.33 × 42,156.33
  4. Step 4: Simplify right side
    125,262.33x = 7,920,808,911.62
  5. Step 5: Solve for x
    x = 7,920,808,911.62/125,262.33
  6. Step 6: Final answer
    x = 63,233.77

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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.