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Finding the Fourth Proportional to 220,191.48, 303,869.88 and 124,696.80

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Solution

The fourth proportional to 220,191.48, 303,869.88 and 124,696.80 is: 172,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,191.48 : 303,869.88 = 124,696.80 : x
  2. Step 2: Convert to fraction form
    220,191.48/303,869.88 = 124,696.80/x
  3. Step 3: Cross multiply
    220,191.48x = 303,869.88 × 124,696.80
  4. Step 4: Simplify right side
    220,191.48x = 37,891,601,652.38
  5. Step 5: Solve for x
    x = 37,891,601,652.38/220,191.48
  6. Step 6: Final answer
    x = 172,084.78

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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.