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Finding the Fourth Proportional to 71,333.76, 106,909.06 and 26,907.60

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Solution

The fourth proportional to 71,333.76, 106,909.06 and 26,907.60 is: 40,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,333.76 : 106,909.06 = 26,907.60 : x
  2. Step 2: Convert to fraction form
    71,333.76/106,909.06 = 26,907.60/x
  3. Step 3: Cross multiply
    71,333.76x = 106,909.06 × 26,907.60
  4. Step 4: Simplify right side
    71,333.76x = 2,876,666,222.86
  5. Step 5: Solve for x
    x = 2,876,666,222.86/71,333.76
  6. Step 6: Final answer
    x = 40,326.86

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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.