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Finding the Fourth Proportional to 220,511.77, 330,736.52 and 70,732.59

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Solution

The fourth proportional to 220,511.77, 330,736.52 and 70,732.59 is: 106,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.77 : 330,736.52 = 70,732.59 : x
  2. Step 2: Convert to fraction form
    220,511.77/330,736.52 = 70,732.59/x
  3. Step 3: Cross multiply
    220,511.77x = 330,736.52 × 70,732.59
  4. Step 4: Simplify right side
    220,511.77x = 23,393,851,066.28
  5. Step 5: Solve for x
    x = 23,393,851,066.28/220,511.77
  6. Step 6: Final answer
    x = 106,088.90

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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.