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Finding the Fourth Proportional to 61,791.20, 92,686.80 and 41,962.40

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Solution

The fourth proportional to 61,791.20, 92,686.80 and 41,962.40 is: 62,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,791.20 : 92,686.80 = 41,962.40 : x
  2. Step 2: Convert to fraction form
    61,791.20/92,686.80 = 41,962.40/x
  3. Step 3: Cross multiply
    61,791.20x = 92,686.80 × 41,962.40
  4. Step 4: Simplify right side
    61,791.20x = 3,889,360,576.32
  5. Step 5: Solve for x
    x = 3,889,360,576.32/61,791.20
  6. Step 6: Final answer
    x = 62,943.60

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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.