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Finding the Fourth Proportional to 61,162.44, 84,399.18 and 34,301.28

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Solution

The fourth proportional to 61,162.44, 84,399.18 and 34,301.28 is: 47,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,162.44 : 84,399.18 = 34,301.28 : x
  2. Step 2: Convert to fraction form
    61,162.44/84,399.18 = 34,301.28/x
  3. Step 3: Cross multiply
    61,162.44x = 84,399.18 × 34,301.28
  4. Step 4: Simplify right side
    61,162.44x = 2,894,999,904.95
  5. Step 5: Solve for x
    x = 2,894,999,904.95/61,162.44
  6. Step 6: Final answer
    x = 47,332.97

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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.