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Finding the Fourth Proportional to 252,716.96, 378,885.90 and 152,856.72

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Solution

The fourth proportional to 252,716.96, 378,885.90 and 152,856.72 is: 229,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,716.96 : 378,885.90 = 152,856.72 : x
  2. Step 2: Convert to fraction form
    252,716.96/378,885.90 = 152,856.72/x
  3. Step 3: Cross multiply
    252,716.96x = 378,885.90 × 152,856.72
  4. Step 4: Simplify right side
    252,716.96x = 57,915,256,501.46
  5. Step 5: Solve for x
    x = 57,915,256,501.46/252,716.96
  6. Step 6: Final answer
    x = 229,170.44

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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.