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Finding the Fourth Proportional to 317,068.96, 475,620.20 and 80,413.76

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Solution

The fourth proportional to 317,068.96, 475,620.20 and 80,413.76 is: 120,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,068.96 : 475,620.20 = 80,413.76 : x
  2. Step 2: Convert to fraction form
    317,068.96/475,620.20 = 80,413.76/x
  3. Step 3: Cross multiply
    317,068.96x = 475,620.20 × 80,413.76
  4. Step 4: Simplify right side
    317,068.96x = 38,246,408,613.95
  5. Step 5: Solve for x
    x = 38,246,408,613.95/317,068.96
  6. Step 6: Final answer
    x = 120,624.89

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1.5x scale

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.