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Finding the Fourth Proportional to 71,033.40, 98,062.95 and 51,891.69

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Solution

The fourth proportional to 71,033.40, 98,062.95 and 51,891.69 is: 71,637.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,033.40 : 98,062.95 = 51,891.69 : x
  2. Step 2: Convert to fraction form
    71,033.40/98,062.95 = 51,891.69/x
  3. Step 3: Cross multiply
    71,033.40x = 98,062.95 × 51,891.69
  4. Step 4: Simplify right side
    71,033.40x = 5,088,652,201.89
  5. Step 5: Solve for x
    x = 5,088,652,201.89/71,033.40
  6. Step 6: Final answer
    x = 71,637.46

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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.