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Finding the Fourth Proportional to 218,957.92, 302,155.92 and 123,463.84

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Solution

The fourth proportional to 218,957.92, 302,155.92 and 123,463.84 is: 170,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,957.92 : 302,155.92 = 123,463.84 : x
  2. Step 2: Convert to fraction form
    218,957.92/302,155.92 = 123,463.84/x
  3. Step 3: Cross multiply
    218,957.92x = 302,155.92 × 123,463.84
  4. Step 4: Simplify right side
    218,957.92x = 37,305,330,161.93
  5. Step 5: Solve for x
    x = 37,305,330,161.93/218,957.92
  6. Step 6: Final answer
    x = 170,376.71

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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.