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Finding the Fourth Proportional to 147,508.80, 203,574.24 and 83,866.56

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Solution

The fourth proportional to 147,508.80, 203,574.24 and 83,866.56 is: 115,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,508.80 : 203,574.24 = 83,866.56 : x
  2. Step 2: Convert to fraction form
    147,508.80/203,574.24 = 83,866.56/x
  3. Step 3: Cross multiply
    147,508.80x = 203,574.24 × 83,866.56
  4. Step 4: Simplify right side
    147,508.80x = 17,073,071,213.41
  5. Step 5: Solve for x
    x = 17,073,071,213.41/147,508.80
  6. Step 6: Final answer
    x = 115,742.73

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1.5x scale

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.