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Finding the Fourth Proportional to 127,745.59, 191,640.90 and 52,823.76

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Solution

The fourth proportional to 127,745.59, 191,640.90 and 52,823.76 is: 79,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,745.59 : 191,640.90 = 52,823.76 : x
  2. Step 2: Convert to fraction form
    127,745.59/191,640.90 = 52,823.76/x
  3. Step 3: Cross multiply
    127,745.59x = 191,640.90 × 52,823.76
  4. Step 4: Simplify right side
    127,745.59x = 10,123,192,907.78
  5. Step 5: Solve for x
    x = 10,123,192,907.78/127,745.59
  6. Step 6: Final answer
    x = 79,244.95

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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.