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Finding the Fourth Proportional to 134,479.73, 201,661.26 and 45,709.40

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Solution

The fourth proportional to 134,479.73, 201,661.26 and 45,709.40 is: 68,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,479.73 : 201,661.26 = 45,709.40 : x
  2. Step 2: Convert to fraction form
    134,479.73/201,661.26 = 45,709.40/x
  3. Step 3: Cross multiply
    134,479.73x = 201,661.26 × 45,709.40
  4. Step 4: Simplify right side
    134,479.73x = 9,217,815,197.84
  5. Step 5: Solve for x
    x = 9,217,815,197.84/134,479.73
  6. Step 6: Final answer
    x = 68,544.27

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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.