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Finding the Fourth Proportional to 74,451.82, 111,703.65 and 35,039.02

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Solution

The fourth proportional to 74,451.82, 111,703.65 and 35,039.02 is: 52,570.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,451.82 : 111,703.65 = 35,039.02 : x
  2. Step 2: Convert to fraction form
    74,451.82/111,703.65 = 35,039.02/x
  3. Step 3: Cross multiply
    74,451.82x = 111,703.65 × 35,039.02
  4. Step 4: Simplify right side
    74,451.82x = 3,913,986,426.42
  5. Step 5: Solve for x
    x = 3,913,986,426.42/74,451.82
  6. Step 6: Final answer
    x = 52,570.73

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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.