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Finding the Fourth Proportional to 57,956.10, 86,934.15 and 54,068.10

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Solution

The fourth proportional to 57,956.10, 86,934.15 and 54,068.10 is: 81,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956.10 : 86,934.15 = 54,068.10 : x
  2. Step 2: Convert to fraction form
    57,956.10/86,934.15 = 54,068.10/x
  3. Step 3: Cross multiply
    57,956.10x = 86,934.15 × 54,068.10
  4. Step 4: Simplify right side
    57,956.10x = 4,700,364,315.62
  5. Step 5: Solve for x
    x = 4,700,364,315.62/57,956.10
  6. Step 6: Final answer
    x = 81,102.15

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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.