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Finding the Fourth Proportional to 122,542.80, 183,814.20 and 110,101.20

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Solution

The fourth proportional to 122,542.80, 183,814.20 and 110,101.20 is: 165,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,542.80 : 183,814.20 = 110,101.20 : x
  2. Step 2: Convert to fraction form
    122,542.80/183,814.20 = 110,101.20/x
  3. Step 3: Cross multiply
    122,542.80x = 183,814.20 × 110,101.20
  4. Step 4: Simplify right side
    122,542.80x = 20,238,163,997.04
  5. Step 5: Solve for x
    x = 20,238,163,997.04/122,542.80
  6. Step 6: Final answer
    x = 165,151.80

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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.