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Finding the Fourth Proportional to 98,956.74, 148,435.18 and 27,879.39

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Solution

The fourth proportional to 98,956.74, 148,435.18 and 27,879.39 is: 41,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,956.74 : 148,435.18 = 27,879.39 : x
  2. Step 2: Convert to fraction form
    98,956.74/148,435.18 = 27,879.39/x
  3. Step 3: Cross multiply
    98,956.74x = 148,435.18 × 27,879.39
  4. Step 4: Simplify right side
    98,956.74x = 4,138,282,360.06
  5. Step 5: Solve for x
    x = 4,138,282,360.06/98,956.74
  6. Step 6: Final answer
    x = 41,819.11

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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.