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Finding the Fourth Proportional to 79,899.78, 110,275.11 and 48,071.64

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Solution

The fourth proportional to 79,899.78, 110,275.11 and 48,071.64 is: 66,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,899.78 : 110,275.11 = 48,071.64 : x
  2. Step 2: Convert to fraction form
    79,899.78/110,275.11 = 48,071.64/x
  3. Step 3: Cross multiply
    79,899.78x = 110,275.11 × 48,071.64
  4. Step 4: Simplify right side
    79,899.78x = 5,301,105,388.88
  5. Step 5: Solve for x
    x = 5,301,105,388.88/79,899.78
  6. Step 6: Final answer
    x = 66,346.93

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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.