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Finding the Fourth Proportional to 134,108.40, 200,932.20 and 87,337.20

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Solution

The fourth proportional to 134,108.40, 200,932.20 and 87,337.20 is: 130,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,108.40 : 200,932.20 = 87,337.20 : x
  2. Step 2: Convert to fraction form
    134,108.40/200,932.20 = 87,337.20/x
  3. Step 3: Cross multiply
    134,108.40x = 200,932.20 × 87,337.20
  4. Step 4: Simplify right side
    134,108.40x = 17,548,855,737.84
  5. Step 5: Solve for x
    x = 17,548,855,737.84/134,108.40
  6. Step 6: Final answer
    x = 130,855.75

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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.