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Finding the Fourth Proportional to 92,687.16, 127,863.18 and 54,934.68

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Solution

The fourth proportional to 92,687.16, 127,863.18 and 54,934.68 is: 75,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,687.16 : 127,863.18 = 54,934.68 : x
  2. Step 2: Convert to fraction form
    92,687.16/127,863.18 = 54,934.68/x
  3. Step 3: Cross multiply
    92,687.16x = 127,863.18 × 54,934.68
  4. Step 4: Simplify right side
    92,687.16x = 7,024,122,877.08
  5. Step 5: Solve for x
    x = 7,024,122,877.08/92,687.16
  6. Step 6: Final answer
    x = 75,783.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.