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Finding the Fourth Proportional to 68,748.22, 94,761.12 and 48,572.74

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Solution

The fourth proportional to 68,748.22, 94,761.12 and 48,572.74 is: 66,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,748.22 : 94,761.12 = 48,572.74 : x
  2. Step 2: Convert to fraction form
    68,748.22/94,761.12 = 48,572.74/x
  3. Step 3: Cross multiply
    68,748.22x = 94,761.12 × 48,572.74
  4. Step 4: Simplify right side
    68,748.22x = 4,602,807,243.87
  5. Step 5: Solve for x
    x = 4,602,807,243.87/68,748.22
  6. Step 6: Final answer
    x = 66,951.66

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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.