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Finding the Fourth Proportional to 303,145.83, 418,334.31 and 167,175.90

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Solution

The fourth proportional to 303,145.83, 418,334.31 and 167,175.90 is: 230,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,145.83 : 418,334.31 = 167,175.90 : x
  2. Step 2: Convert to fraction form
    303,145.83/418,334.31 = 167,175.90/x
  3. Step 3: Cross multiply
    303,145.83x = 418,334.31 × 167,175.90
  4. Step 4: Simplify right side
    303,145.83x = 69,935,414,775.13
  5. Step 5: Solve for x
    x = 69,935,414,775.13/303,145.83
  6. Step 6: Final answer
    x = 230,698.92

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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.