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Finding the Fourth Proportional to 131,808.52, 197,737.60 and 52,928.80

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Solution

The fourth proportional to 131,808.52, 197,737.60 and 52,928.80 is: 79,403.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,808.52 : 197,737.60 = 52,928.80 : x
  2. Step 2: Convert to fraction form
    131,808.52/197,737.60 = 52,928.80/x
  3. Step 3: Cross multiply
    131,808.52x = 197,737.60 × 52,928.80
  4. Step 4: Simplify right side
    131,808.52x = 10,466,013,882.88
  5. Step 5: Solve for x
    x = 10,466,013,882.88/131,808.52
  6. Step 6: Final answer
    x = 79,403.17

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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.