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Finding the Fourth Proportional to 147,059.80, 220,589.70 and 123,731.80

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Solution

The fourth proportional to 147,059.80, 220,589.70 and 123,731.80 is: 185,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,059.80 : 220,589.70 = 123,731.80 : x
  2. Step 2: Convert to fraction form
    147,059.80/220,589.70 = 123,731.80/x
  3. Step 3: Cross multiply
    147,059.80x = 220,589.70 × 123,731.80
  4. Step 4: Simplify right side
    147,059.80x = 27,293,960,642.46
  5. Step 5: Solve for x
    x = 27,293,960,642.46/147,059.80
  6. Step 6: Final answer
    x = 185,597.70

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1.5x scale

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.