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Finding the Fourth Proportional to 221,785.65, 332,706.11 and 86,832.27

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Solution

The fourth proportional to 221,785.65, 332,706.11 and 86,832.27 is: 130,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,785.65 : 332,706.11 = 86,832.27 : x
  2. Step 2: Convert to fraction form
    221,785.65/332,706.11 = 86,832.27/x
  3. Step 3: Cross multiply
    221,785.65x = 332,706.11 × 86,832.27
  4. Step 4: Simplify right side
    221,785.65x = 28,889,626,340.01
  5. Step 5: Solve for x
    x = 28,889,626,340.01/221,785.65
  6. Step 6: Final answer
    x = 130,259.22

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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.