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Finding the Fourth Proportional to 253,734.36, 350,127.90 and 140,535.96

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Solution

The fourth proportional to 253,734.36, 350,127.90 and 140,535.96 is: 193,925.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,734.36 : 350,127.90 = 140,535.96 : x
  2. Step 2: Convert to fraction form
    253,734.36/350,127.90 = 140,535.96/x
  3. Step 3: Cross multiply
    253,734.36x = 350,127.90 × 140,535.96
  4. Step 4: Simplify right side
    253,734.36x = 49,205,560,549.28
  5. Step 5: Solve for x
    x = 49,205,560,549.28/253,734.36
  6. Step 6: Final answer
    x = 193,925.49

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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.