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Finding the Fourth Proportional to 318,358.34, 477,373.17 and 93,689.60

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Solution

The fourth proportional to 318,358.34, 477,373.17 and 93,689.60 is: 140,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,358.34 : 477,373.17 = 93,689.60 : x
  2. Step 2: Convert to fraction form
    318,358.34/477,373.17 = 93,689.60/x
  3. Step 3: Cross multiply
    318,358.34x = 477,373.17 × 93,689.60
  4. Step 4: Simplify right side
    318,358.34x = 44,724,900,207.58
  5. Step 5: Solve for x
    x = 44,724,900,207.58/318,358.34
  6. Step 6: Final answer
    x = 140,486.04

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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.