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Finding the Fourth Proportional to 118,652.75, 178,049.28 and 43,825.76

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Solution

The fourth proportional to 118,652.75, 178,049.28 and 43,825.76 is: 65,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,652.75 : 178,049.28 = 43,825.76 : x
  2. Step 2: Convert to fraction form
    118,652.75/178,049.28 = 43,825.76/x
  3. Step 3: Cross multiply
    118,652.75x = 178,049.28 × 43,825.76
  4. Step 4: Simplify right side
    118,652.75x = 7,803,144,123.21
  5. Step 5: Solve for x
    x = 7,803,144,123.21/118,652.75
  6. Step 6: Final answer
    x = 65,764.55

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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.