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Finding the Fourth Proportional to 134,428.44, 201,661.11 and 45,658.11

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Solution

The fourth proportional to 134,428.44, 201,661.11 and 45,658.11 is: 68,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,428.44 : 201,661.11 = 45,658.11 : x
  2. Step 2: Convert to fraction form
    134,428.44/201,661.11 = 45,658.11/x
  3. Step 3: Cross multiply
    134,428.44x = 201,661.11 × 45,658.11
  4. Step 4: Simplify right side
    134,428.44x = 9,207,465,143.10
  5. Step 5: Solve for x
    x = 9,207,465,143.10/134,428.44
  6. Step 6: Final answer
    x = 68,493.43

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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.