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Finding the Fourth Proportional to 102,604.70, 141,591.71 and 57,281.39

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Solution

The fourth proportional to 102,604.70, 141,591.71 and 57,281.39 is: 79,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,604.70 : 141,591.71 = 57,281.39 : x
  2. Step 2: Convert to fraction form
    102,604.70/141,591.71 = 57,281.39/x
  3. Step 3: Cross multiply
    102,604.70x = 141,591.71 × 57,281.39
  4. Step 4: Simplify right side
    102,604.70x = 8,110,568,966.91
  5. Step 5: Solve for x
    x = 8,110,568,966.91/102,604.70
  6. Step 6: Final answer
    x = 79,046.76

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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.