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Finding the Fourth Proportional to 147,626.46, 203,735.79 and 83,960.46

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Solution

The fourth proportional to 147,626.46, 203,735.79 and 83,960.46 is: 115,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,626.46 : 203,735.79 = 83,960.46 : x
  2. Step 2: Convert to fraction form
    147,626.46/203,735.79 = 83,960.46/x
  3. Step 3: Cross multiply
    147,626.46x = 203,735.79 × 83,960.46
  4. Step 4: Simplify right side
    147,626.46x = 17,105,750,646.86
  5. Step 5: Solve for x
    x = 17,105,750,646.86/147,626.46
  6. Step 6: Final answer
    x = 115,871.85

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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.