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Finding the Fourth Proportional to 79,482.60, 109,797.94 and 75,283.56

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Solution

The fourth proportional to 79,482.60, 109,797.94 and 75,283.56 is: 103,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,482.60 : 109,797.94 = 75,283.56 : x
  2. Step 2: Convert to fraction form
    79,482.60/109,797.94 = 75,283.56/x
  3. Step 3: Cross multiply
    79,482.60x = 109,797.94 × 75,283.56
  4. Step 4: Simplify right side
    79,482.60x = 8,265,979,803.87
  5. Step 5: Solve for x
    x = 8,265,979,803.87/79,482.60
  6. Step 6: Final answer
    x = 103,997.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.