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Finding the Fourth Proportional to 75,040.92, 112,480.38 and 48,764.52

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Solution

The fourth proportional to 75,040.92, 112,480.38 and 48,764.52 is: 73,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,040.92 : 112,480.38 = 48,764.52 : x
  2. Step 2: Convert to fraction form
    75,040.92/112,480.38 = 48,764.52/x
  3. Step 3: Cross multiply
    75,040.92x = 112,480.38 × 48,764.52
  4. Step 4: Simplify right side
    75,040.92x = 5,485,051,740.12
  5. Step 5: Solve for x
    x = 5,485,051,740.12/75,040.92
  6. Step 6: Final answer
    x = 73,094.14

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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.