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Finding the Fourth Proportional to 68,888.58, 95,071.74 and 38,675.89

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Solution

The fourth proportional to 68,888.58, 95,071.74 and 38,675.89 is: 53,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,888.58 : 95,071.74 = 38,675.89 : x
  2. Step 2: Convert to fraction form
    68,888.58/95,071.74 = 38,675.89/x
  3. Step 3: Cross multiply
    68,888.58x = 95,071.74 × 38,675.89
  4. Step 4: Simplify right side
    68,888.58x = 3,676,983,489.61
  5. Step 5: Solve for x
    x = 3,676,983,489.61/68,888.58
  6. Step 6: Final answer
    x = 53,375.81

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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.