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Finding the Fourth Proportional to 79,872, 110,266.56 and 48,048

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Solution

The fourth proportional to 79,872, 110,266.56 and 48,048 is: 66,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,872 : 110,266.56 = 48,048 : x
  2. Step 2: Convert to fraction form
    79,872/110,266.56 = 48,048/x
  3. Step 3: Cross multiply
    79,872x = 110,266.56 × 48,048
  4. Step 4: Simplify right side
    79,872x = 5,298,087,674.88
  5. Step 5: Solve for x
    x = 5,298,087,674.88/79,872
  6. Step 6: Final answer
    x = 66,332.23

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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.