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Finding the Fourth Proportional to 268,232.80, 402,397.80 and 134,777.20

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Solution

The fourth proportional to 268,232.80, 402,397.80 and 134,777.20 is: 202,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,232.80 : 402,397.80 = 134,777.20 : x
  2. Step 2: Convert to fraction form
    268,232.80/402,397.80 = 134,777.20/x
  3. Step 3: Cross multiply
    268,232.80x = 402,397.80 × 134,777.20
  4. Step 4: Simplify right side
    268,232.80x = 54,234,048,770.16
  5. Step 5: Solve for x
    x = 54,234,048,770.16/268,232.80
  6. Step 6: Final answer
    x = 202,190.22

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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.