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Finding the Fourth Proportional to 318,734.68, 477,990.57 and 94,035.46

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Solution

The fourth proportional to 318,734.68, 477,990.57 and 94,035.46 is: 141,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,734.68 : 477,990.57 = 94,035.46 : x
  2. Step 2: Convert to fraction form
    318,734.68/477,990.57 = 94,035.46/x
  3. Step 3: Cross multiply
    318,734.68x = 477,990.57 × 94,035.46
  4. Step 4: Simplify right side
    318,734.68x = 44,948,063,125.61
  5. Step 5: Solve for x
    x = 44,948,063,125.61/318,734.68
  6. Step 6: Final answer
    x = 141,020.31

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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.