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Finding the Fourth Proportional to 123,782.04, 170,819.42 and 67,193.48

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Solution

The fourth proportional to 123,782.04, 170,819.42 and 67,193.48 is: 92,727.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,782.04 : 170,819.42 = 67,193.48 : x
  2. Step 2: Convert to fraction form
    123,782.04/170,819.42 = 67,193.48/x
  3. Step 3: Cross multiply
    123,782.04x = 170,819.42 × 67,193.48
  4. Step 4: Simplify right side
    123,782.04x = 11,477,951,281.38
  5. Step 5: Solve for x
    x = 11,477,951,281.38/123,782.04
  6. Step 6: Final answer
    x = 92,727.11

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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.