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Finding the Fourth Proportional to 79,805.43, 110,130.75 and 43,995.42

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Solution

The fourth proportional to 79,805.43, 110,130.75 and 43,995.42 is: 60,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,805.43 : 110,130.75 = 43,995.42 : x
  2. Step 2: Convert to fraction form
    79,805.43/110,130.75 = 43,995.42/x
  3. Step 3: Cross multiply
    79,805.43x = 110,130.75 × 43,995.42
  4. Step 4: Simplify right side
    79,805.43x = 4,845,248,601.17
  5. Step 5: Solve for x
    x = 4,845,248,601.17/79,805.43
  6. Step 6: Final answer
    x = 60,713.27

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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.