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Finding the Fourth Proportional to 156,717.30, 235,116.48 and 67,950.30

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Solution

The fourth proportional to 156,717.30, 235,116.48 and 67,950.30 is: 101,943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717.30 : 235,116.48 = 67,950.30 : x
  2. Step 2: Convert to fraction form
    156,717.30/235,116.48 = 67,950.30/x
  3. Step 3: Cross multiply
    156,717.30x = 235,116.48 × 67,950.30
  4. Step 4: Simplify right side
    156,717.30x = 15,976,235,350.94
  5. Step 5: Solve for x
    x = 15,976,235,350.94/156,717.30
  6. Step 6: Final answer
    x = 101,943.02

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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.