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Finding the Fourth Proportional to 124,788.38, 187,256.28 and 65,628.62

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Solution

The fourth proportional to 124,788.38, 187,256.28 and 65,628.62 is: 98,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,788.38 : 187,256.28 = 65,628.62 : x
  2. Step 2: Convert to fraction form
    124,788.38/187,256.28 = 65,628.62/x
  3. Step 3: Cross multiply
    124,788.38x = 187,256.28 × 65,628.62
  4. Step 4: Simplify right side
    124,788.38x = 12,289,371,242.73
  5. Step 5: Solve for x
    x = 12,289,371,242.73/124,788.38
  6. Step 6: Final answer
    x = 98,481.70

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1.5x scale

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.