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Finding the Fourth Proportional to 220,411.66, 330,648.63 and 70,616.91

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Solution

The fourth proportional to 220,411.66, 330,648.63 and 70,616.91 is: 105,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,411.66 : 330,648.63 = 70,616.91 : x
  2. Step 2: Convert to fraction form
    220,411.66/330,648.63 = 70,616.91/x
  3. Step 3: Cross multiply
    220,411.66x = 330,648.63 × 70,616.91
  4. Step 4: Simplify right side
    220,411.66x = 23,349,384,546.33
  5. Step 5: Solve for x
    x = 23,349,384,546.33/220,411.66
  6. Step 6: Final answer
    x = 105,935.34

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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.