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Finding the Fourth Proportional to 373,612.80, 560,419.20 and 124,294.80

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Solution

The fourth proportional to 373,612.80, 560,419.20 and 124,294.80 is: 186,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,612.80 : 560,419.20 = 124,294.80 : x
  2. Step 2: Convert to fraction form
    373,612.80/560,419.20 = 124,294.80/x
  3. Step 3: Cross multiply
    373,612.80x = 560,419.20 × 124,294.80
  4. Step 4: Simplify right side
    373,612.80x = 69,657,192,380.16
  5. Step 5: Solve for x
    x = 69,657,192,380.16/373,612.80
  6. Step 6: Final answer
    x = 186,442.20

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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.