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Finding the Fourth Proportional to 373,597.20, 560,468.70 and 148,919.40

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Solution

The fourth proportional to 373,597.20, 560,468.70 and 148,919.40 is: 223,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,597.20 : 560,468.70 = 148,919.40 : x
  2. Step 2: Convert to fraction form
    373,597.20/560,468.70 = 148,919.40/x
  3. Step 3: Cross multiply
    373,597.20x = 560,468.70 × 148,919.40
  4. Step 4: Simplify right side
    373,597.20x = 83,464,662,522.78
  5. Step 5: Solve for x
    x = 83,464,662,522.78/373,597.20
  6. Step 6: Final answer
    x = 223,408.16

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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.