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Finding the Fourth Proportional to 125,316.52, 187,642.23 and 98,026.90

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Solution

The fourth proportional to 125,316.52, 187,642.23 and 98,026.90 is: 146,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,316.52 : 187,642.23 = 98,026.90 : x
  2. Step 2: Convert to fraction form
    125,316.52/187,642.23 = 98,026.90/x
  3. Step 3: Cross multiply
    125,316.52x = 187,642.23 × 98,026.90
  4. Step 4: Simplify right side
    125,316.52x = 18,393,986,115.99
  5. Step 5: Solve for x
    x = 18,393,986,115.99/125,316.52
  6. Step 6: Final answer
    x = 146,780.22

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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.