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Finding the Fourth Proportional to 72,342.80, 108,514.20 and 44,694.80

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Solution

The fourth proportional to 72,342.80, 108,514.20 and 44,694.80 is: 67,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,342.80 : 108,514.20 = 44,694.80 : x
  2. Step 2: Convert to fraction form
    72,342.80/108,514.20 = 44,694.80/x
  3. Step 3: Cross multiply
    72,342.80x = 108,514.20 × 44,694.80
  4. Step 4: Simplify right side
    72,342.80x = 4,850,020,466.16
  5. Step 5: Solve for x
    x = 4,850,020,466.16/72,342.80
  6. Step 6: Final answer
    x = 67,042.20

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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.