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Finding the Fourth Proportional to 68,449.72, 94,460.76 and 38,641.72

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Solution

The fourth proportional to 68,449.72, 94,460.76 and 38,641.72 is: 53,325.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,449.72 : 94,460.76 = 38,641.72 : x
  2. Step 2: Convert to fraction form
    68,449.72/94,460.76 = 38,641.72/x
  3. Step 3: Cross multiply
    68,449.72x = 94,460.76 × 38,641.72
  4. Step 4: Simplify right side
    68,449.72x = 3,650,126,238.91
  5. Step 5: Solve for x
    x = 3,650,126,238.91/68,449.72
  6. Step 6: Final answer
    x = 53,325.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.