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Finding the Fourth Proportional to 141,456.68, 212,169.16 and 36,278.12

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Solution

The fourth proportional to 141,456.68, 212,169.16 and 36,278.12 is: 54,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,456.68 : 212,169.16 = 36,278.12 : x
  2. Step 2: Convert to fraction form
    141,456.68/212,169.16 = 36,278.12/x
  3. Step 3: Cross multiply
    141,456.68x = 212,169.16 × 36,278.12
  4. Step 4: Simplify right side
    141,456.68x = 7,697,098,246.78
  5. Step 5: Solve for x
    x = 7,697,098,246.78/141,456.68
  6. Step 6: Final answer
    x = 54,413.11

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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.