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Finding the Fourth Proportional to 303,121.39, 418,309.50 and 167,160.46

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Solution

The fourth proportional to 303,121.39, 418,309.50 and 167,160.46 is: 230,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,121.39 : 418,309.50 = 167,160.46 : x
  2. Step 2: Convert to fraction form
    303,121.39/418,309.50 = 167,160.46/x
  3. Step 3: Cross multiply
    303,121.39x = 418,309.50 × 167,160.46
  4. Step 4: Simplify right side
    303,121.39x = 69,924,808,442.37
  5. Step 5: Solve for x
    x = 69,924,808,442.37/303,121.39
  6. Step 6: Final answer
    x = 230,682.53

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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.