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Finding the Fourth Proportional to 173,048.40, 259,718.40 and 84,377.70

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Solution

The fourth proportional to 173,048.40, 259,718.40 and 84,377.70 is: 126,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,048.40 : 259,718.40 = 84,377.70 : x
  2. Step 2: Convert to fraction form
    173,048.40/259,718.40 = 84,377.70/x
  3. Step 3: Cross multiply
    173,048.40x = 259,718.40 × 84,377.70
  4. Step 4: Simplify right side
    173,048.40x = 21,914,441,239.68
  5. Step 5: Solve for x
    x = 21,914,441,239.68/173,048.40
  6. Step 6: Final answer
    x = 126,637.64

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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.