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Finding the Fourth Proportional to 141,659.92, 212,351.64 and 67,839.76

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Solution

The fourth proportional to 141,659.92, 212,351.64 and 67,839.76 is: 101,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,659.92 : 212,351.64 = 67,839.76 : x
  2. Step 2: Convert to fraction form
    141,659.92/212,351.64 = 67,839.76/x
  3. Step 3: Cross multiply
    141,659.92x = 212,351.64 × 67,839.76
  4. Step 4: Simplify right side
    141,659.92x = 14,405,884,293.21
  5. Step 5: Solve for x
    x = 14,405,884,293.21/141,659.92
  6. Step 6: Final answer
    x = 101,693.44

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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.