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Finding the Fourth Proportional to 71,062.98, 106,594.29 and 66,732.54

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Solution

The fourth proportional to 71,062.98, 106,594.29 and 66,732.54 is: 100,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.98 : 106,594.29 = 66,732.54 : x
  2. Step 2: Convert to fraction form
    71,062.98/106,594.29 = 66,732.54/x
  3. Step 3: Cross multiply
    71,062.98x = 106,594.29 × 66,732.54
  4. Step 4: Simplify right side
    71,062.98x = 7,113,307,721.20
  5. Step 5: Solve for x
    x = 7,113,307,721.20/71,062.98
  6. Step 6: Final answer
    x = 100,098.64

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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.