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Finding the Fourth Proportional to 156,957.70, 235,436.55 and 83,229.70

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Solution

The fourth proportional to 156,957.70, 235,436.55 and 83,229.70 is: 124,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.70 : 235,436.55 = 83,229.70 : x
  2. Step 2: Convert to fraction form
    156,957.70/235,436.55 = 83,229.70/x
  3. Step 3: Cross multiply
    156,957.70x = 235,436.55 × 83,229.70
  4. Step 4: Simplify right side
    156,957.70x = 19,595,313,425.54
  5. Step 5: Solve for x
    x = 19,595,313,425.54/156,957.70
  6. Step 6: Final answer
    x = 124,844.55

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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.