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Finding the Fourth Proportional to 316,508.38, 436,742.89 and 252,141.53

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Solution

The fourth proportional to 316,508.38, 436,742.89 and 252,141.53 is: 347,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,508.38 : 436,742.89 = 252,141.53 : x
  2. Step 2: Convert to fraction form
    316,508.38/436,742.89 = 252,141.53/x
  3. Step 3: Cross multiply
    316,508.38x = 436,742.89 × 252,141.53
  4. Step 4: Simplify right side
    316,508.38x = 110,121,017,687.15
  5. Step 5: Solve for x
    x = 110,121,017,687.15/316,508.38
  6. Step 6: Final answer
    x = 347,924.50

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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.