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Finding the Fourth Proportional to 101,640.78, 152,471.52 and 35,080.74

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Solution

The fourth proportional to 101,640.78, 152,471.52 and 35,080.74 is: 52,624.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,640.78 : 152,471.52 = 35,080.74 : x
  2. Step 2: Convert to fraction form
    101,640.78/152,471.52 = 35,080.74/x
  3. Step 3: Cross multiply
    101,640.78x = 152,471.52 × 35,080.74
  4. Step 4: Simplify right side
    101,640.78x = 5,348,813,750.52
  5. Step 5: Solve for x
    x = 5,348,813,750.52/101,640.78
  6. Step 6: Final answer
    x = 52,624.68

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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.