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Finding the Fourth Proportional to 132,366.84, 198,355.86 and 104,355.42

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Solution

The fourth proportional to 132,366.84, 198,355.86 and 104,355.42 is: 156,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,366.84 : 198,355.86 = 104,355.42 : x
  2. Step 2: Convert to fraction form
    132,366.84/198,355.86 = 104,355.42/x
  3. Step 3: Cross multiply
    132,366.84x = 198,355.86 × 104,355.42
  4. Step 4: Simplify right side
    132,366.84x = 20,699,509,079.76
  5. Step 5: Solve for x
    x = 20,699,509,079.76/132,366.84
  6. Step 6: Final answer
    x = 156,379.87

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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.