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Finding the Fourth Proportional to 318,095.92, 477,158.48 and 225,017.20

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Solution

The fourth proportional to 318,095.92, 477,158.48 and 225,017.20 is: 337,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,095.92 : 477,158.48 = 225,017.20 : x
  2. Step 2: Convert to fraction form
    318,095.92/477,158.48 = 225,017.20/x
  3. Step 3: Cross multiply
    318,095.92x = 477,158.48 × 225,017.20
  4. Step 4: Simplify right side
    318,095.92x = 107,368,865,125.86
  5. Step 5: Solve for x
    x = 107,368,865,125.86/318,095.92
  6. Step 6: Final answer
    x = 337,536.13

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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.