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Finding the Fourth Proportional to 123,584.88, 170,487 and 73,248.24

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Solution

The fourth proportional to 123,584.88, 170,487 and 73,248.24 is: 101,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,584.88 : 170,487 = 73,248.24 : x
  2. Step 2: Convert to fraction form
    123,584.88/170,487 = 73,248.24/x
  3. Step 3: Cross multiply
    123,584.88x = 170,487 × 73,248.24
  4. Step 4: Simplify right side
    123,584.88x = 12,487,872,692.88
  5. Step 5: Solve for x
    x = 12,487,872,692.88/123,584.88
  6. Step 6: Final answer
    x = 101,046.93

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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.