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Finding the Fourth Proportional to 86,175.84, 129,262.78 and 33,622.23

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Solution

The fourth proportional to 86,175.84, 129,262.78 and 33,622.23 is: 50,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,175.84 : 129,262.78 = 33,622.23 : x
  2. Step 2: Convert to fraction form
    86,175.84/129,262.78 = 33,622.23/x
  3. Step 3: Cross multiply
    86,175.84x = 129,262.78 × 33,622.23
  4. Step 4: Simplify right side
    86,175.84x = 4,346,102,919.60
  5. Step 5: Solve for x
    x = 4,346,102,919.60/86,175.84
  6. Step 6: Final answer
    x = 50,432.96

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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.