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Finding the Fourth Proportional to 73,424.61, 110,140.56 and 31,310.28

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Solution

The fourth proportional to 73,424.61, 110,140.56 and 31,310.28 is: 46,966.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,424.61 : 110,140.56 = 31,310.28 : x
  2. Step 2: Convert to fraction form
    73,424.61/110,140.56 = 31,310.28/x
  3. Step 3: Cross multiply
    73,424.61x = 110,140.56 × 31,310.28
  4. Step 4: Simplify right side
    73,424.61x = 3,448,531,772.96
  5. Step 5: Solve for x
    x = 3,448,531,772.96/73,424.61
  6. Step 6: Final answer
    x = 46,966.97

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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.