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Finding the Fourth Proportional to 61,231.79, 84,499.82 and 34,374.35

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Solution

The fourth proportional to 61,231.79, 84,499.82 and 34,374.35 is: 47,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,231.79 : 84,499.82 = 34,374.35 : x
  2. Step 2: Convert to fraction form
    61,231.79/84,499.82 = 34,374.35/x
  3. Step 3: Cross multiply
    61,231.79x = 84,499.82 × 34,374.35
  4. Step 4: Simplify right side
    61,231.79x = 2,904,626,387.62
  5. Step 5: Solve for x
    x = 2,904,626,387.62/61,231.79
  6. Step 6: Final answer
    x = 47,436.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.