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Finding the Fourth Proportional to 121,696.48, 182,356.56 and 94,979.12

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Solution

The fourth proportional to 121,696.48, 182,356.56 and 94,979.12 is: 142,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,696.48 : 182,356.56 = 94,979.12 : x
  2. Step 2: Convert to fraction form
    121,696.48/182,356.56 = 94,979.12/x
  3. Step 3: Cross multiply
    121,696.48x = 182,356.56 × 94,979.12
  4. Step 4: Simplify right side
    121,696.48x = 17,320,065,595.03
  5. Step 5: Solve for x
    x = 17,320,065,595.03/121,696.48
  6. Step 6: Final answer
    x = 142,321.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.