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Finding the Fourth Proportional to 74,514.70, 102,789.30 and 47,240.92

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Solution

The fourth proportional to 74,514.70, 102,789.30 and 47,240.92 is: 65,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,514.70 : 102,789.30 = 47,240.92 : x
  2. Step 2: Convert to fraction form
    74,514.70/102,789.30 = 47,240.92/x
  3. Step 3: Cross multiply
    74,514.70x = 102,789.30 × 47,240.92
  4. Step 4: Simplify right side
    74,514.70x = 4,855,861,098.16
  5. Step 5: Solve for x
    x = 4,855,861,098.16/74,514.70
  6. Step 6: Final answer
    x = 65,166.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.