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Finding the Fourth Proportional to 61,442.90, 92,200.20 and 25,902.06

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Solution

The fourth proportional to 61,442.90, 92,200.20 and 25,902.06 is: 38,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,442.90 : 92,200.20 = 25,902.06 : x
  2. Step 2: Convert to fraction form
    61,442.90/92,200.20 = 25,902.06/x
  3. Step 3: Cross multiply
    61,442.90x = 92,200.20 × 25,902.06
  4. Step 4: Simplify right side
    61,442.90x = 2,388,175,112.41
  5. Step 5: Solve for x
    x = 2,388,175,112.41/61,442.90
  6. Step 6: Final answer
    x = 38,868.20

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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.