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Finding the Fourth Proportional to 140,574.99, 193,998.59 and 80,135.85

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Solution

The fourth proportional to 140,574.99, 193,998.59 and 80,135.85 is: 110,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,574.99 : 193,998.59 = 80,135.85 : x
  2. Step 2: Convert to fraction form
    140,574.99/193,998.59 = 80,135.85/x
  3. Step 3: Cross multiply
    140,574.99x = 193,998.59 × 80,135.85
  4. Step 4: Simplify right side
    140,574.99x = 15,546,241,908.45
  5. Step 5: Solve for x
    x = 15,546,241,908.45/140,574.99
  6. Step 6: Final answer
    x = 110,590.38

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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.