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Finding the Fourth Proportional to 128,843.34, 193,278.26 and 44,603.34

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Solution

The fourth proportional to 128,843.34, 193,278.26 and 44,603.34 is: 66,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,843.34 : 193,278.26 = 44,603.34 : x
  2. Step 2: Convert to fraction form
    128,843.34/193,278.26 = 44,603.34/x
  3. Step 3: Cross multiply
    128,843.34x = 193,278.26 × 44,603.34
  4. Step 4: Simplify right side
    128,843.34x = 8,620,855,945.39
  5. Step 5: Solve for x
    x = 8,620,855,945.39/128,843.34
  6. Step 6: Final answer
    x = 66,909.60

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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.