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Finding the Fourth Proportional to 123,523.60, 170,462.73 and 66,934.93

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Solution

The fourth proportional to 123,523.60, 170,462.73 and 66,934.93 is: 92,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,523.60 : 170,462.73 = 66,934.93 : x
  2. Step 2: Convert to fraction form
    123,523.60/170,462.73 = 66,934.93/x
  3. Step 3: Cross multiply
    123,523.60x = 170,462.73 × 66,934.93
  4. Step 4: Simplify right side
    123,523.60x = 11,409,910,900.16
  5. Step 5: Solve for x
    x = 11,409,910,900.16/123,523.60
  6. Step 6: Final answer
    x = 92,370.29

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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.