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Finding the Fourth Proportional to 240,617.20, 360,148.20 and 187,740.40

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Solution

The fourth proportional to 240,617.20, 360,148.20 and 187,740.40 is: 281,003.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,617.20 : 360,148.20 = 187,740.40 : x
  2. Step 2: Convert to fraction form
    240,617.20/360,148.20 = 187,740.40/x
  3. Step 3: Cross multiply
    240,617.20x = 360,148.20 × 187,740.40
  4. Step 4: Simplify right side
    240,617.20x = 67,614,367,127.28
  5. Step 5: Solve for x
    x = 67,614,367,127.28/240,617.20
  6. Step 6: Final answer
    x = 281,003.88

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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.