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Finding the Fourth Proportional to 45,309.42, 67,902.03 and 34,207.02

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Solution

The fourth proportional to 45,309.42, 67,902.03 and 34,207.02 is: 51,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,309.42 : 67,902.03 = 34,207.02 : x
  2. Step 2: Convert to fraction form
    45,309.42/67,902.03 = 34,207.02/x
  3. Step 3: Cross multiply
    45,309.42x = 67,902.03 × 34,207.02
  4. Step 4: Simplify right side
    45,309.42x = 2,322,726,098.25
  5. Step 5: Solve for x
    x = 2,322,726,098.25/45,309.42
  6. Step 6: Final answer
    x = 51,263.65

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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.