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Finding the Fourth Proportional to 303,146.75, 418,345.14 and 167,185.55

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Solution

The fourth proportional to 303,146.75, 418,345.14 and 167,185.55 is: 230,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,146.75 : 418,345.14 = 167,185.55 : x
  2. Step 2: Convert to fraction form
    303,146.75/418,345.14 = 167,185.55/x
  3. Step 3: Cross multiply
    303,146.75x = 418,345.14 × 167,185.55
  4. Step 4: Simplify right side
    303,146.75x = 69,941,262,320.73
  5. Step 5: Solve for x
    x = 69,941,262,320.73/303,146.75
  6. Step 6: Final answer
    x = 230,717.51

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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.