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Finding the Fourth Proportional to 318,348.98, 477,359.16 and 93,680.24

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Solution

The fourth proportional to 318,348.98, 477,359.16 and 93,680.24 is: 140,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,348.98 : 477,359.16 = 93,680.24 : x
  2. Step 2: Convert to fraction form
    318,348.98/477,359.16 = 93,680.24/x
  3. Step 3: Cross multiply
    318,348.98x = 477,359.16 × 93,680.24
  4. Step 4: Simplify right side
    318,348.98x = 44,719,120,675.00
  5. Step 5: Solve for x
    x = 44,719,120,675.00/318,348.98
  6. Step 6: Final answer
    x = 140,472.01

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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.