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Finding the Fourth Proportional to 70,957.34, 106,223.48 and 68,433.88

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Solution

The fourth proportional to 70,957.34, 106,223.48 and 68,433.88 is: 102,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.34 : 106,223.48 = 68,433.88 : x
  2. Step 2: Convert to fraction form
    70,957.34/106,223.48 = 68,433.88/x
  3. Step 3: Cross multiply
    70,957.34x = 106,223.48 × 68,433.88
  4. Step 4: Simplify right side
    70,957.34x = 7,269,284,883.50
  5. Step 5: Solve for x
    x = 7,269,284,883.50/70,957.34
  6. Step 6: Final answer
    x = 102,445.85

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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.