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Finding the Fourth Proportional to 67,694.76, 93,251.70 and 57,590.82

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Solution

The fourth proportional to 67,694.76, 93,251.70 and 57,590.82 is: 79,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,694.76 : 93,251.70 = 57,590.82 : x
  2. Step 2: Convert to fraction form
    67,694.76/93,251.70 = 57,590.82/x
  3. Step 3: Cross multiply
    67,694.76x = 93,251.70 × 57,590.82
  4. Step 4: Simplify right side
    67,694.76x = 5,370,441,869.39
  5. Step 5: Solve for x
    x = 5,370,441,869.39/67,694.76
  6. Step 6: Final answer
    x = 79,333.20

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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.