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Finding the Fourth Proportional to 134,287.80, 201,103.65 and 100,826.70

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Solution

The fourth proportional to 134,287.80, 201,103.65 and 100,826.70 is: 150,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,287.80 : 201,103.65 = 100,826.70 : x
  2. Step 2: Convert to fraction form
    134,287.80/201,103.65 = 100,826.70/x
  3. Step 3: Cross multiply
    134,287.80x = 201,103.65 × 100,826.70
  4. Step 4: Simplify right side
    134,287.80x = 20,276,617,387.46
  5. Step 5: Solve for x
    x = 20,276,617,387.46/134,287.80
  6. Step 6: Final answer
    x = 150,993.74

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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.