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Finding the Fourth Proportional to 173,842.10, 260,698.35 and 68,639.30

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Solution

The fourth proportional to 173,842.10, 260,698.35 and 68,639.30 is: 102,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,842.10 : 260,698.35 = 68,639.30 : x
  2. Step 2: Convert to fraction form
    173,842.10/260,698.35 = 68,639.30/x
  3. Step 3: Cross multiply
    173,842.10x = 260,698.35 × 68,639.30
  4. Step 4: Simplify right side
    173,842.10x = 17,894,152,255.16
  5. Step 5: Solve for x
    x = 17,894,152,255.16/173,842.10
  6. Step 6: Final answer
    x = 102,933.36

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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.