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Finding the Fourth Proportional to 70,959.88, 97,822.92 and 55,826.31

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Solution

The fourth proportional to 70,959.88, 97,822.92 and 55,826.31 is: 76,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,959.88 : 97,822.92 = 55,826.31 : x
  2. Step 2: Convert to fraction form
    70,959.88/97,822.92 = 55,826.31/x
  3. Step 3: Cross multiply
    70,959.88x = 97,822.92 × 55,826.31
  4. Step 4: Simplify right side
    70,959.88x = 5,461,092,167.91
  5. Step 5: Solve for x
    x = 5,461,092,167.91/70,959.88
  6. Step 6: Final answer
    x = 76,960.28

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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.