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Finding the Fourth Proportional to 173,672.10, 260,443.35 and 68,469.30

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Solution

The fourth proportional to 173,672.10, 260,443.35 and 68,469.30 is: 102,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,672.10 : 260,443.35 = 68,469.30 : x
  2. Step 2: Convert to fraction form
    173,672.10/260,443.35 = 68,469.30/x
  3. Step 3: Cross multiply
    173,672.10x = 260,443.35 × 68,469.30
  4. Step 4: Simplify right side
    173,672.10x = 17,832,373,864.16
  5. Step 5: Solve for x
    x = 17,832,373,864.16/173,672.10
  6. Step 6: Final answer
    x = 102,678.40

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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.