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Finding the Fourth Proportional to 159,636.74, 239,446.47 and 48,828.74

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Solution

The fourth proportional to 159,636.74, 239,446.47 and 48,828.74 is: 73,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,636.74 : 239,446.47 = 48,828.74 : x
  2. Step 2: Convert to fraction form
    159,636.74/239,446.47 = 48,828.74/x
  3. Step 3: Cross multiply
    159,636.74x = 239,446.47 × 48,828.74
  4. Step 4: Simplify right side
    159,636.74x = 11,691,869,427.55
  5. Step 5: Solve for x
    x = 11,691,869,427.55/159,636.74
  6. Step 6: Final answer
    x = 73,240.47

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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.