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Finding the Fourth Proportional to 147,185.73, 220,638.46 and 47,275.88

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Solution

The fourth proportional to 147,185.73, 220,638.46 and 47,275.88 is: 70,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,185.73 : 220,638.46 = 47,275.88 : x
  2. Step 2: Convert to fraction form
    147,185.73/220,638.46 = 47,275.88/x
  3. Step 3: Cross multiply
    147,185.73x = 220,638.46 × 47,275.88
  4. Step 4: Simplify right side
    147,185.73x = 10,430,876,713.19
  5. Step 5: Solve for x
    x = 10,430,876,713.19/147,185.73
  6. Step 6: Final answer
    x = 70,868.80

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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.