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Finding the Fourth Proportional to 124,493.80, 186,740.70 and 41,387.80

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Solution

The fourth proportional to 124,493.80, 186,740.70 and 41,387.80 is: 62,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,493.80 : 186,740.70 = 41,387.80 : x
  2. Step 2: Convert to fraction form
    124,493.80/186,740.70 = 41,387.80/x
  3. Step 3: Cross multiply
    124,493.80x = 186,740.70 × 41,387.80
  4. Step 4: Simplify right side
    124,493.80x = 7,728,786,743.46
  5. Step 5: Solve for x
    x = 7,728,786,743.46/124,493.80
  6. Step 6: Final answer
    x = 62,081.70

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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.