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Finding the Fourth Proportional to 82,691.84, 124,101.12 and 41,173.76

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Solution

The fourth proportional to 82,691.84, 124,101.12 and 41,173.76 is: 61,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,691.84 : 124,101.12 = 41,173.76 : x
  2. Step 2: Convert to fraction form
    82,691.84/124,101.12 = 41,173.76/x
  3. Step 3: Cross multiply
    82,691.84x = 124,101.12 × 41,173.76
  4. Step 4: Simplify right side
    82,691.84x = 5,109,709,730.61
  5. Step 5: Solve for x
    x = 5,109,709,730.61/82,691.84
  6. Step 6: Final answer
    x = 61,792.19

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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.