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Finding the Fourth Proportional to 220,092.36, 330,134.72 and 70,331.72

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Solution

The fourth proportional to 220,092.36, 330,134.72 and 70,331.72 is: 105,496.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,092.36 : 330,134.72 = 70,331.72 : x
  2. Step 2: Convert to fraction form
    220,092.36/330,134.72 = 70,331.72/x
  3. Step 3: Cross multiply
    220,092.36x = 330,134.72 × 70,331.72
  4. Step 4: Simplify right side
    220,092.36x = 23,218,942,689.32
  5. Step 5: Solve for x
    x = 23,218,942,689.32/220,092.36
  6. Step 6: Final answer
    x = 105,496.36

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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.