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Finding the Fourth Proportional to 141,819.84, 212,740.68 and 41,978.42

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Solution

The fourth proportional to 141,819.84, 212,740.68 and 41,978.42 is: 62,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.84 : 212,740.68 = 41,978.42 : x
  2. Step 2: Convert to fraction form
    141,819.84/212,740.68 = 41,978.42/x
  3. Step 3: Cross multiply
    141,819.84x = 212,740.68 × 41,978.42
  4. Step 4: Simplify right side
    141,819.84x = 8,930,517,616.13
  5. Step 5: Solve for x
    x = 8,930,517,616.13/141,819.84
  6. Step 6: Final answer
    x = 62,970.86

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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.