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Finding the Fourth Proportional to 157,212.70, 235,819.05 and 44,892.70

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Solution

The fourth proportional to 157,212.70, 235,819.05 and 44,892.70 is: 67,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,212.70 : 235,819.05 = 44,892.70 : x
  2. Step 2: Convert to fraction form
    157,212.70/235,819.05 = 44,892.70/x
  3. Step 3: Cross multiply
    157,212.70x = 235,819.05 × 44,892.70
  4. Step 4: Simplify right side
    157,212.70x = 10,586,553,865.94
  5. Step 5: Solve for x
    x = 10,586,553,865.94/157,212.70
  6. Step 6: Final answer
    x = 67,339.05

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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.