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Finding the Fourth Proportional to 110,255.97, 152,238.95 and 84,722.09

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Solution

The fourth proportional to 110,255.97, 152,238.95 and 84,722.09 is: 116,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,255.97 : 152,238.95 = 84,722.09 : x
  2. Step 2: Convert to fraction form
    110,255.97/152,238.95 = 84,722.09/x
  3. Step 3: Cross multiply
    110,255.97x = 152,238.95 × 84,722.09
  4. Step 4: Simplify right side
    110,255.97x = 12,898,000,838.60
  5. Step 5: Solve for x
    x = 12,898,000,838.60/110,255.97
  6. Step 6: Final answer
    x = 116,982.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.