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Finding the Fourth Proportional to 202,217.50, 279,060.15 and 112,793.50

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Solution

The fourth proportional to 202,217.50, 279,060.15 and 112,793.50 is: 155,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,217.50 : 279,060.15 = 112,793.50 : x
  2. Step 2: Convert to fraction form
    202,217.50/279,060.15 = 112,793.50/x
  3. Step 3: Cross multiply
    202,217.50x = 279,060.15 × 112,793.50
  4. Step 4: Simplify right side
    202,217.50x = 31,476,171,029.03
  5. Step 5: Solve for x
    x = 31,476,171,029.03/202,217.50
  6. Step 6: Final answer
    x = 155,655.03

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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.