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Finding the Fourth Proportional to 132,158.49, 182,376 and 74,796.79

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Solution

The fourth proportional to 132,158.49, 182,376 and 74,796.79 is: 103,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,158.49 : 182,376 = 74,796.79 : x
  2. Step 2: Convert to fraction form
    132,158.49/182,376 = 74,796.79/x
  3. Step 3: Cross multiply
    132,158.49x = 182,376 × 74,796.79
  4. Step 4: Simplify right side
    132,158.49x = 13,641,138,917.10
  5. Step 5: Solve for x
    x = 13,641,138,917.10/132,158.49
  6. Step 6: Final answer
    x = 103,218.03

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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.