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Finding the Fourth Proportional to 61,327.64, 91,942.56 and 56,407.16

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Solution

The fourth proportional to 61,327.64, 91,942.56 and 56,407.16 is: 84,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,327.64 : 91,942.56 = 56,407.16 : x
  2. Step 2: Convert to fraction form
    61,327.64/91,942.56 = 56,407.16/x
  3. Step 3: Cross multiply
    61,327.64x = 91,942.56 × 56,407.16
  4. Step 4: Simplify right side
    61,327.64x = 5,186,218,692.73
  5. Step 5: Solve for x
    x = 5,186,218,692.73/61,327.64
  6. Step 6: Final answer
    x = 84,565.76

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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.