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Finding the Fourth Proportional to 158,251.94, 218,368.32 and 126,068.54

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Solution

The fourth proportional to 158,251.94, 218,368.32 and 126,068.54 is: 173,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,251.94 : 218,368.32 = 126,068.54 : x
  2. Step 2: Convert to fraction form
    158,251.94/218,368.32 = 126,068.54/x
  3. Step 3: Cross multiply
    158,251.94x = 218,368.32 × 126,068.54
  4. Step 4: Simplify right side
    158,251.94x = 27,529,375,357.82
  5. Step 5: Solve for x
    x = 27,529,375,357.82/158,251.94
  6. Step 6: Final answer
    x = 173,959.16

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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.