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Finding the Fourth Proportional to 220,636.26, 330,881.76 and 70,840.92

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Solution

The fourth proportional to 220,636.26, 330,881.76 and 70,840.92 is: 106,238.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,636.26 : 330,881.76 = 70,840.92 : x
  2. Step 2: Convert to fraction form
    220,636.26/330,881.76 = 70,840.92/x
  3. Step 3: Cross multiply
    220,636.26x = 330,881.76 × 70,840.92
  4. Step 4: Simplify right side
    220,636.26x = 23,439,968,289.62
  5. Step 5: Solve for x
    x = 23,439,968,289.62/220,636.26
  6. Step 6: Final answer
    x = 106,238.06

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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.