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Finding the Fourth Proportional to 79,971.12, 110,357.28 and 44,159.28

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Solution

The fourth proportional to 79,971.12, 110,357.28 and 44,159.28 is: 60,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,971.12 : 110,357.28 = 44,159.28 : x
  2. Step 2: Convert to fraction form
    79,971.12/110,357.28 = 44,159.28/x
  3. Step 3: Cross multiply
    79,971.12x = 110,357.28 × 44,159.28
  4. Step 4: Simplify right side
    79,971.12x = 4,873,298,027.56
  5. Step 5: Solve for x
    x = 4,873,298,027.56/79,971.12
  6. Step 6: Final answer
    x = 60,938.22

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1.5x scale

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.