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Finding the Fourth Proportional to 221,772.26, 332,686.09 and 86,818.91

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Solution

The fourth proportional to 221,772.26, 332,686.09 and 86,818.91 is: 130,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,772.26 : 332,686.09 = 86,818.91 : x
  2. Step 2: Convert to fraction form
    221,772.26/332,686.09 = 86,818.91/x
  3. Step 3: Cross multiply
    221,772.26x = 332,686.09 × 86,818.91
  4. Step 4: Simplify right side
    221,772.26x = 28,883,441,662.70
  5. Step 5: Solve for x
    x = 28,883,441,662.70/221,772.26
  6. Step 6: Final answer
    x = 130,239.20

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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.