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Finding the Fourth Proportional to 61,342.80, 91,956.60 and 48,008.40

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Solution

The fourth proportional to 61,342.80, 91,956.60 and 48,008.40 is: 71,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,342.80 : 91,956.60 = 48,008.40 : x
  2. Step 2: Convert to fraction form
    61,342.80/91,956.60 = 48,008.40/x
  3. Step 3: Cross multiply
    61,342.80x = 91,956.60 × 48,008.40
  4. Step 4: Simplify right side
    61,342.80x = 4,414,689,235.44
  5. Step 5: Solve for x
    x = 4,414,689,235.44/61,342.80
  6. Step 6: Final answer
    x = 71,967.52

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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.