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Finding the Fourth Proportional to 123,176.67, 169,983.90 and 66,588.03

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Solution

The fourth proportional to 123,176.67, 169,983.90 and 66,588.03 is: 91,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,176.67 : 169,983.90 = 66,588.03 : x
  2. Step 2: Convert to fraction form
    123,176.67/169,983.90 = 66,588.03/x
  3. Step 3: Cross multiply
    123,176.67x = 169,983.90 × 66,588.03
  4. Step 4: Simplify right side
    123,176.67x = 11,318,893,032.72
  5. Step 5: Solve for x
    x = 11,318,893,032.72/123,176.67
  6. Step 6: Final answer
    x = 91,891.53

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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.