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Finding the Fourth Proportional to 125,959.64, 173,811.44 and 77,553.88

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Solution

The fourth proportional to 125,959.64, 173,811.44 and 77,553.88 is: 107,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,959.64 : 173,811.44 = 77,553.88 : x
  2. Step 2: Convert to fraction form
    125,959.64/173,811.44 = 77,553.88/x
  3. Step 3: Cross multiply
    125,959.64x = 173,811.44 × 77,553.88
  4. Step 4: Simplify right side
    125,959.64x = 13,479,751,319.74
  5. Step 5: Solve for x
    x = 13,479,751,319.74/125,959.64
  6. Step 6: Final answer
    x = 107,016.44

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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.