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Finding the Fourth Proportional to 356,781.75, 535,251.33 and 104,082

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Solution

The fourth proportional to 356,781.75, 535,251.33 and 104,082 is: 156,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,781.75 : 535,251.33 = 104,082 : x
  2. Step 2: Convert to fraction form
    356,781.75/535,251.33 = 104,082/x
  3. Step 3: Cross multiply
    356,781.75x = 535,251.33 × 104,082
  4. Step 4: Simplify right side
    356,781.75x = 55,710,028,408.65
  5. Step 5: Solve for x
    x = 55,710,028,408.65/356,781.75
  6. Step 6: Final answer
    x = 156,145.96

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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.