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Finding the Fourth Proportional to 173,340.40, 260,034.90 and 68,134.90

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Solution

The fourth proportional to 173,340.40, 260,034.90 and 68,134.90 is: 102,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,340.40 : 260,034.90 = 68,134.90 : x
  2. Step 2: Convert to fraction form
    173,340.40/260,034.90 = 68,134.90/x
  3. Step 3: Cross multiply
    173,340.40x = 260,034.90 × 68,134.90
  4. Step 4: Simplify right side
    173,340.40x = 17,717,451,908.01
  5. Step 5: Solve for x
    x = 17,717,451,908.01/173,340.40
  6. Step 6: Final answer
    x = 102,211.90

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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.