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Finding the Fourth Proportional to 120,551.40, 166,326.42 and 69,560.04

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Solution

The fourth proportional to 120,551.40, 166,326.42 and 69,560.04 is: 95,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,551.40 : 166,326.42 = 69,560.04 : x
  2. Step 2: Convert to fraction form
    120,551.40/166,326.42 = 69,560.04/x
  3. Step 3: Cross multiply
    120,551.40x = 166,326.42 × 69,560.04
  4. Step 4: Simplify right side
    120,551.40x = 11,569,672,428.26
  5. Step 5: Solve for x
    x = 11,569,672,428.26/120,551.40
  6. Step 6: Final answer
    x = 95,972.94

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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.