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Finding the Fourth Proportional to 410,764.80, 616,060.80 and 174,115.20

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Solution

The fourth proportional to 410,764.80, 616,060.80 and 174,115.20 is: 261,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,764.80 : 616,060.80 = 174,115.20 : x
  2. Step 2: Convert to fraction form
    410,764.80/616,060.80 = 174,115.20/x
  3. Step 3: Cross multiply
    410,764.80x = 616,060.80 × 174,115.20
  4. Step 4: Simplify right side
    410,764.80x = 107,265,549,404.16
  5. Step 5: Solve for x
    x = 107,265,549,404.16/410,764.80
  6. Step 6: Final answer
    x = 261,136.18

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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.