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Finding the Fourth Proportional to 79,881.06, 110,216.18 and 48,828.47

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Solution

The fourth proportional to 79,881.06, 110,216.18 and 48,828.47 is: 67,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,881.06 : 110,216.18 = 48,828.47 : x
  2. Step 2: Convert to fraction form
    79,881.06/110,216.18 = 48,828.47/x
  3. Step 3: Cross multiply
    79,881.06x = 110,216.18 × 48,828.47
  4. Step 4: Simplify right side
    79,881.06x = 5,381,686,643.42
  5. Step 5: Solve for x
    x = 5,381,686,643.42/79,881.06
  6. Step 6: Final answer
    x = 67,371.25

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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.