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Finding the Fourth Proportional to 123,174.44, 169,980.66 and 66,585.92

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Solution

The fourth proportional to 123,174.44, 169,980.66 and 66,585.92 is: 91,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,174.44 : 169,980.66 = 66,585.92 : x
  2. Step 2: Convert to fraction form
    123,174.44/169,980.66 = 66,585.92/x
  3. Step 3: Cross multiply
    123,174.44x = 169,980.66 × 66,585.92
  4. Step 4: Simplify right side
    123,174.44x = 11,318,318,628.31
  5. Step 5: Solve for x
    x = 11,318,318,628.31/123,174.44
  6. Step 6: Final answer
    x = 91,888.53

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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.