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Finding the Fourth Proportional to 75,335.79, 112,863.87 and 53,944.35

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Solution

The fourth proportional to 75,335.79, 112,863.87 and 53,944.35 is: 80,816.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,335.79 : 112,863.87 = 53,944.35 : x
  2. Step 2: Convert to fraction form
    75,335.79/112,863.87 = 53,944.35/x
  3. Step 3: Cross multiply
    75,335.79x = 112,863.87 × 53,944.35
  4. Step 4: Simplify right side
    75,335.79x = 6,088,368,105.63
  5. Step 5: Solve for x
    x = 6,088,368,105.63/75,335.79
  6. Step 6: Final answer
    x = 80,816.41

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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.