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Finding the Fourth Proportional to 123,799.62, 170,843.92 and 67,210.94

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Solution

The fourth proportional to 123,799.62, 170,843.92 and 67,210.94 is: 92,751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,799.62 : 170,843.92 = 67,210.94 : x
  2. Step 2: Convert to fraction form
    123,799.62/170,843.92 = 67,210.94/x
  3. Step 3: Cross multiply
    123,799.62x = 170,843.92 × 67,210.94
  4. Step 4: Simplify right side
    123,799.62x = 11,482,580,456.48
  5. Step 5: Solve for x
    x = 11,482,580,456.48/123,799.62
  6. Step 6: Final answer
    x = 92,751.34

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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.