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Finding the Fourth Proportional to 253,990.54, 350,522.66 and 140,813.29

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Solution

The fourth proportional to 253,990.54, 350,522.66 and 140,813.29 is: 194,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,990.54 : 350,522.66 = 140,813.29 : x
  2. Step 2: Convert to fraction form
    253,990.54/350,522.66 = 140,813.29/x
  3. Step 3: Cross multiply
    253,990.54x = 350,522.66 × 140,813.29
  4. Step 4: Simplify right side
    253,990.54x = 49,358,248,974.15
  5. Step 5: Solve for x
    x = 49,358,248,974.15/253,990.54
  6. Step 6: Final answer
    x = 194,331.05

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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.