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Finding the Fourth Proportional to 261,553.12, 360,850.37 and 170,961.30

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Solution

The fourth proportional to 261,553.12, 360,850.37 and 170,961.30 is: 235,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,553.12 : 360,850.37 = 170,961.30 : x
  2. Step 2: Convert to fraction form
    261,553.12/360,850.37 = 170,961.30/x
  3. Step 3: Cross multiply
    261,553.12x = 360,850.37 × 170,961.30
  4. Step 4: Simplify right side
    261,553.12x = 61,691,447,505.87
  5. Step 5: Solve for x
    x = 61,691,447,505.87/261,553.12
  6. Step 6: Final answer
    x = 235,865.85

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1.5x scale

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.