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Finding the Fourth Proportional to 70,909.01, 106,393.99 and 26,530.12

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Solution

The fourth proportional to 70,909.01, 106,393.99 and 26,530.12 is: 39,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,909.01 : 106,393.99 = 26,530.12 : x
  2. Step 2: Convert to fraction form
    70,909.01/106,393.99 = 26,530.12/x
  3. Step 3: Cross multiply
    70,909.01x = 106,393.99 × 26,530.12
  4. Step 4: Simplify right side
    70,909.01x = 2,822,645,321.98
  5. Step 5: Solve for x
    x = 2,822,645,321.98/70,909.01
  6. Step 6: Final answer
    x = 39,806.58

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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.