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Finding the Fourth Proportional to 74,392.48, 111,493.84 and 34,862.40

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Solution

The fourth proportional to 74,392.48, 111,493.84 and 34,862.40 is: 52,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,392.48 : 111,493.84 = 34,862.40 : x
  2. Step 2: Convert to fraction form
    74,392.48/111,493.84 = 34,862.40/x
  3. Step 3: Cross multiply
    74,392.48x = 111,493.84 × 34,862.40
  4. Step 4: Simplify right side
    74,392.48x = 3,886,942,847.62
  5. Step 5: Solve for x
    x = 3,886,942,847.62/74,392.48
  6. Step 6: Final answer
    x = 52,249.14

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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.