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Finding the Fourth Proportional to 316,034.35, 436,124.42 and 172,792.87

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Solution

The fourth proportional to 316,034.35, 436,124.42 and 172,792.87 is: 238,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,034.35 : 436,124.42 = 172,792.87 : x
  2. Step 2: Convert to fraction form
    316,034.35/436,124.42 = 172,792.87/x
  3. Step 3: Cross multiply
    316,034.35x = 436,124.42 × 172,792.87
  4. Step 4: Simplify right side
    316,034.35x = 75,359,188,902.58
  5. Step 5: Solve for x
    x = 75,359,188,902.58/316,034.35
  6. Step 6: Final answer
    x = 238,452.53

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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.