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Finding the Fourth Proportional to 220,247.82, 330,393.54 and 70,450.50

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Solution

The fourth proportional to 220,247.82, 330,393.54 and 70,450.50 is: 105,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,247.82 : 330,393.54 = 70,450.50 : x
  2. Step 2: Convert to fraction form
    220,247.82/330,393.54 = 70,450.50/x
  3. Step 3: Cross multiply
    220,247.82x = 330,393.54 × 70,450.50
  4. Step 4: Simplify right side
    220,247.82x = 23,276,390,089.77
  5. Step 5: Solve for x
    x = 23,276,390,089.77/220,247.82
  6. Step 6: Final answer
    x = 105,682.73

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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.