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Finding the Fourth Proportional to 373,598.20, 560,470.20 and 148,920.40

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Solution

The fourth proportional to 373,598.20, 560,470.20 and 148,920.40 is: 223,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,598.20 : 560,470.20 = 148,920.40 : x
  2. Step 2: Convert to fraction form
    373,598.20/560,470.20 = 148,920.40/x
  3. Step 3: Cross multiply
    373,598.20x = 560,470.20 × 148,920.40
  4. Step 4: Simplify right side
    373,598.20x = 83,465,446,372.08
  5. Step 5: Solve for x
    x = 83,465,446,372.08/373,598.20
  6. Step 6: Final answer
    x = 223,409.66

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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.