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Finding the Fourth Proportional to 159,440.74, 239,190.52 and 65,953.78

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Solution

The fourth proportional to 159,440.74, 239,190.52 and 65,953.78 is: 98,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,440.74 : 239,190.52 = 65,953.78 : x
  2. Step 2: Convert to fraction form
    159,440.74/239,190.52 = 65,953.78/x
  3. Step 3: Cross multiply
    159,440.74x = 239,190.52 × 65,953.78
  4. Step 4: Simplify right side
    159,440.74x = 15,775,518,934.17
  5. Step 5: Solve for x
    x = 15,775,518,934.17/159,440.74
  6. Step 6: Final answer
    x = 98,942.84

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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.