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Finding the Fourth Proportional to 110,645.87, 165,968.91 and 47,424.97

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Solution

The fourth proportional to 110,645.87, 165,968.91 and 47,424.97 is: 71,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,645.87 : 165,968.91 = 47,424.97 : x
  2. Step 2: Convert to fraction form
    110,645.87/165,968.91 = 47,424.97/x
  3. Step 3: Cross multiply
    110,645.87x = 165,968.91 × 47,424.97
  4. Step 4: Simplify right side
    110,645.87x = 7,871,070,577.68
  5. Step 5: Solve for x
    x = 7,871,070,577.68/110,645.87
  6. Step 6: Final answer
    x = 71,137.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.