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Finding the Fourth Proportional to 73,086.80, 109,630.47 and 26,343.32

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Solution

The fourth proportional to 73,086.80, 109,630.47 and 26,343.32 is: 39,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,086.80 : 109,630.47 = 26,343.32 : x
  2. Step 2: Convert to fraction form
    73,086.80/109,630.47 = 26,343.32/x
  3. Step 3: Cross multiply
    73,086.80x = 109,630.47 × 26,343.32
  4. Step 4: Simplify right side
    73,086.80x = 2,888,030,552.96
  5. Step 5: Solve for x
    x = 2,888,030,552.96/73,086.80
  6. Step 6: Final answer
    x = 39,515.08

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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.