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Finding the Fourth Proportional to 134,473.11, 201,711.29 and 45,728.43

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Solution

The fourth proportional to 134,473.11, 201,711.29 and 45,728.43 is: 68,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,473.11 : 201,711.29 = 45,728.43 : x
  2. Step 2: Convert to fraction form
    134,473.11/201,711.29 = 45,728.43/x
  3. Step 3: Cross multiply
    134,473.11x = 201,711.29 × 45,728.43
  4. Step 4: Simplify right side
    134,473.11x = 9,223,940,376.33
  5. Step 5: Solve for x
    x = 9,223,940,376.33/134,473.11
  6. Step 6: Final answer
    x = 68,593.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.