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Finding the Fourth Proportional to 75,167.28, 103,749.48 and 43,355.28

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Solution

The fourth proportional to 75,167.28, 103,749.48 and 43,355.28 is: 59,841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,167.28 : 103,749.48 = 43,355.28 : x
  2. Step 2: Convert to fraction form
    75,167.28/103,749.48 = 43,355.28/x
  3. Step 3: Cross multiply
    75,167.28x = 103,749.48 × 43,355.28
  4. Step 4: Simplify right side
    75,167.28x = 4,498,087,755.25
  5. Step 5: Solve for x
    x = 4,498,087,755.25/75,167.28
  6. Step 6: Final answer
    x = 59,841.03

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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.