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Finding the Fourth Proportional to 124,817.20, 187,225.80 and 41,711.20

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Solution

The fourth proportional to 124,817.20, 187,225.80 and 41,711.20 is: 62,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,817.20 : 187,225.80 = 41,711.20 : x
  2. Step 2: Convert to fraction form
    124,817.20/187,225.80 = 41,711.20/x
  3. Step 3: Cross multiply
    124,817.20x = 187,225.80 × 41,711.20
  4. Step 4: Simplify right side
    124,817.20x = 7,809,412,788.96
  5. Step 5: Solve for x
    x = 7,809,412,788.96/124,817.20
  6. Step 6: Final answer
    x = 62,566.80

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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.