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Finding the Fourth Proportional to 79,319.28, 109,464.04 and 47,482.02

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Solution

The fourth proportional to 79,319.28, 109,464.04 and 47,482.02 is: 65,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,319.28 : 109,464.04 = 47,482.02 : x
  2. Step 2: Convert to fraction form
    79,319.28/109,464.04 = 47,482.02/x
  3. Step 3: Cross multiply
    79,319.28x = 109,464.04 × 47,482.02
  4. Step 4: Simplify right side
    79,319.28x = 5,197,573,736.56
  5. Step 5: Solve for x
    x = 5,197,573,736.56/79,319.28
  6. Step 6: Final answer
    x = 65,527.24

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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.