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Finding the Fourth Proportional to 223,060.80, 333,619.20 and 199,538.40

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Solution

The fourth proportional to 223,060.80, 333,619.20 and 199,538.40 is: 298,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,060.80 : 333,619.20 = 199,538.40 : x
  2. Step 2: Convert to fraction form
    223,060.80/333,619.20 = 199,538.40/x
  3. Step 3: Cross multiply
    223,060.80x = 333,619.20 × 199,538.40
  4. Step 4: Simplify right side
    223,060.80x = 66,569,841,377.28
  5. Step 5: Solve for x
    x = 66,569,841,377.28/223,060.80
  6. Step 6: Final answer
    x = 298,438.10

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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.