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Finding the Fourth Proportional to 88,185.06, 121,691.88 and 47,898

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Solution

The fourth proportional to 88,185.06, 121,691.88 and 47,898 is: 66,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,185.06 : 121,691.88 = 47,898 : x
  2. Step 2: Convert to fraction form
    88,185.06/121,691.88 = 47,898/x
  3. Step 3: Cross multiply
    88,185.06x = 121,691.88 × 47,898
  4. Step 4: Simplify right side
    88,185.06x = 5,828,797,668.24
  5. Step 5: Solve for x
    x = 5,828,797,668.24/88,185.06
  6. Step 6: Final answer
    x = 66,097.34

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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.