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Finding the Fourth Proportional to 61,316.80, 84,616.08 and 34,094.56

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Solution

The fourth proportional to 61,316.80, 84,616.08 and 34,094.56 is: 47,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,316.80 : 84,616.08 = 34,094.56 : x
  2. Step 2: Convert to fraction form
    61,316.80/84,616.08 = 34,094.56/x
  3. Step 3: Cross multiply
    61,316.80x = 84,616.08 × 34,094.56
  4. Step 4: Simplify right side
    61,316.80x = 2,884,948,016.52
  5. Step 5: Solve for x
    x = 2,884,948,016.52/61,316.80
  6. Step 6: Final answer
    x = 47,049.88

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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.