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Finding the Fourth Proportional to 79,872, 110,223.36 and 44,544

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Solution

The fourth proportional to 79,872, 110,223.36 and 44,544 is: 61,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,872 : 110,223.36 = 44,544 : x
  2. Step 2: Convert to fraction form
    79,872/110,223.36 = 44,544/x
  3. Step 3: Cross multiply
    79,872x = 110,223.36 × 44,544
  4. Step 4: Simplify right side
    79,872x = 4,909,789,347.84
  5. Step 5: Solve for x
    x = 4,909,789,347.84/79,872
  6. Step 6: Final answer
    x = 61,470.72

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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.