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Finding the Fourth Proportional to 179,471.70, 247,670.43 and 98,899.20

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Solution

The fourth proportional to 179,471.70, 247,670.43 and 98,899.20 is: 136,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,471.70 : 247,670.43 = 98,899.20 : x
  2. Step 2: Convert to fraction form
    179,471.70/247,670.43 = 98,899.20/x
  3. Step 3: Cross multiply
    179,471.70x = 247,670.43 × 98,899.20
  4. Step 4: Simplify right side
    179,471.70x = 24,494,408,550.82
  5. Step 5: Solve for x
    x = 24,494,408,550.82/179,471.70
  6. Step 6: Final answer
    x = 136,480.62

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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.