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Finding the Fourth Proportional to 203,167.76, 303,516.14 and 131,506.64

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Solution

The fourth proportional to 203,167.76, 303,516.14 and 131,506.64 is: 196,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,167.76 : 303,516.14 = 131,506.64 : x
  2. Step 2: Convert to fraction form
    203,167.76/303,516.14 = 131,506.64/x
  3. Step 3: Cross multiply
    203,167.76x = 303,516.14 × 131,506.64
  4. Step 4: Simplify right side
    203,167.76x = 39,914,387,757.17
  5. Step 5: Solve for x
    x = 39,914,387,757.17/203,167.76
  6. Step 6: Final answer
    x = 196,460.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.