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Finding the Fourth Proportional to 179,443.78, 247,629.18 and 98,878.75

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Solution

The fourth proportional to 179,443.78, 247,629.18 and 98,878.75 is: 136,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,443.78 : 247,629.18 = 98,878.75 : x
  2. Step 2: Convert to fraction form
    179,443.78/247,629.18 = 98,878.75/x
  3. Step 3: Cross multiply
    179,443.78x = 247,629.18 × 98,878.75
  4. Step 4: Simplify right side
    179,443.78x = 24,485,263,781.93
  5. Step 5: Solve for x
    x = 24,485,263,781.93/179,443.78
  6. Step 6: Final answer
    x = 136,450.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.