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Finding the Fourth Proportional to 63,933.92, 88,266.60 and 56,840.72

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Solution

The fourth proportional to 63,933.92, 88,266.60 and 56,840.72 is: 78,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,933.92 : 88,266.60 = 56,840.72 : x
  2. Step 2: Convert to fraction form
    63,933.92/88,266.60 = 56,840.72/x
  3. Step 3: Cross multiply
    63,933.92x = 88,266.60 × 56,840.72
  4. Step 4: Simplify right side
    63,933.92x = 5,017,136,654.62
  5. Step 5: Solve for x
    x = 5,017,136,654.62/63,933.92
  6. Step 6: Final answer
    x = 78,473.79

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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.