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Finding the Fourth Proportional to 173,866.65, 239,919.82 and 98,415.15

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Solution

The fourth proportional to 173,866.65, 239,919.82 and 98,415.15 is: 135,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,866.65 : 239,919.82 = 98,415.15 : x
  2. Step 2: Convert to fraction form
    173,866.65/239,919.82 = 98,415.15/x
  3. Step 3: Cross multiply
    173,866.65x = 239,919.82 × 98,415.15
  4. Step 4: Simplify right side
    173,866.65x = 23,611,745,073.27
  5. Step 5: Solve for x
    x = 23,611,745,073.27/173,866.65
  6. Step 6: Final answer
    x = 135,803.76

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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.