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Finding the Fourth Proportional to 410,012.40, 614,581.20 and 157,195.20

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Solution

The fourth proportional to 410,012.40, 614,581.20 and 157,195.20 is: 235,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,012.40 : 614,581.20 = 157,195.20 : x
  2. Step 2: Convert to fraction form
    410,012.40/614,581.20 = 157,195.20/x
  3. Step 3: Cross multiply
    410,012.40x = 614,581.20 × 157,195.20
  4. Step 4: Simplify right side
    410,012.40x = 96,609,214,650.24
  5. Step 5: Solve for x
    x = 96,609,214,650.24/410,012.40
  6. Step 6: Final answer
    x = 235,625.10

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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.