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Finding the Fourth Proportional to 94,393.96, 141,678.42 and 47,679.64

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Solution

The fourth proportional to 94,393.96, 141,678.42 and 47,679.64 is: 71,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,393.96 : 141,678.42 = 47,679.64 : x
  2. Step 2: Convert to fraction form
    94,393.96/141,678.42 = 47,679.64/x
  3. Step 3: Cross multiply
    94,393.96x = 141,678.42 × 47,679.64
  4. Step 4: Simplify right side
    94,393.96x = 6,755,176,061.37
  5. Step 5: Solve for x
    x = 6,755,176,061.37/94,393.96
  6. Step 6: Final answer
    x = 71,563.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.