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Finding the Fourth Proportional to 72,049.35, 108,039.41 and 34,066.97

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Solution

The fourth proportional to 72,049.35, 108,039.41 and 34,066.97 is: 51,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,049.35 : 108,039.41 = 34,066.97 : x
  2. Step 2: Convert to fraction form
    72,049.35/108,039.41 = 34,066.97/x
  3. Step 3: Cross multiply
    72,049.35x = 108,039.41 × 34,066.97
  4. Step 4: Simplify right side
    72,049.35x = 3,680,574,628.76
  5. Step 5: Solve for x
    x = 3,680,574,628.76/72,049.35
  6. Step 6: Final answer
    x = 51,084.08

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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.