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Finding the Fourth Proportional to 160,841.82, 241,016.69 and 85,972.61

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Solution

The fourth proportional to 160,841.82, 241,016.69 and 85,972.61 is: 128,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,841.82 : 241,016.69 = 85,972.61 : x
  2. Step 2: Convert to fraction form
    160,841.82/241,016.69 = 85,972.61/x
  3. Step 3: Cross multiply
    160,841.82x = 241,016.69 × 85,972.61
  4. Step 4: Simplify right side
    160,841.82x = 20,720,833,892.86
  5. Step 5: Solve for x
    x = 20,720,833,892.86/160,841.82
  6. Step 6: Final answer
    x = 128,827.40

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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.