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Finding the Fourth Proportional to 61,679.96, 92,290.44 and 54,148.02

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Solution

The fourth proportional to 61,679.96, 92,290.44 and 54,148.02 is: 81,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.96 : 92,290.44 = 54,148.02 : x
  2. Step 2: Convert to fraction form
    61,679.96/92,290.44 = 54,148.02/x
  3. Step 3: Cross multiply
    61,679.96x = 92,290.44 × 54,148.02
  4. Step 4: Simplify right side
    61,679.96x = 4,997,344,590.93
  5. Step 5: Solve for x
    x = 4,997,344,590.93/61,679.96
  6. Step 6: Final answer
    x = 81,020.55

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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.