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Finding the Fourth Proportional to 70,889.55, 106,159.25 and 52,834.49

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Solution

The fourth proportional to 70,889.55, 106,159.25 and 52,834.49 is: 79,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,889.55 : 106,159.25 = 52,834.49 : x
  2. Step 2: Convert to fraction form
    70,889.55/106,159.25 = 52,834.49/x
  3. Step 3: Cross multiply
    70,889.55x = 106,159.25 × 52,834.49
  4. Step 4: Simplify right side
    70,889.55x = 5,608,869,832.53
  5. Step 5: Solve for x
    x = 5,608,869,832.53/70,889.55
  6. Step 6: Final answer
    x = 79,121.25

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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.