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Finding the Fourth Proportional to 175,098.97, 262,653.77 and 68,478.67

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Solution

The fourth proportional to 175,098.97, 262,653.77 and 68,478.67 is: 102,720.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,098.97 : 262,653.77 = 68,478.67 : x
  2. Step 2: Convert to fraction form
    175,098.97/262,653.77 = 68,478.67/x
  3. Step 3: Cross multiply
    175,098.97x = 262,653.77 × 68,478.67
  4. Step 4: Simplify right side
    175,098.97x = 17,986,180,840.09
  5. Step 5: Solve for x
    x = 17,986,180,840.09/175,098.97
  6. Step 6: Final answer
    x = 102,720.08

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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.