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Finding the Fourth Proportional to 171,860.84, 237,114.81 and 100,190.12

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Solution

The fourth proportional to 171,860.84, 237,114.81 and 100,190.12 is: 138,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,860.84 : 237,114.81 = 100,190.12 : x
  2. Step 2: Convert to fraction form
    171,860.84/237,114.81 = 100,190.12/x
  3. Step 3: Cross multiply
    171,860.84x = 237,114.81 × 100,190.12
  4. Step 4: Simplify right side
    171,860.84x = 23,756,561,267.68
  5. Step 5: Solve for x
    x = 23,756,561,267.68/171,860.84
  6. Step 6: Final answer
    x = 138,231.38

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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.