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Finding the Fourth Proportional to 119,201.79, 178,636.44 and 89,584.95

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Solution

The fourth proportional to 119,201.79, 178,636.44 and 89,584.95 is: 134,252.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,201.79 : 178,636.44 = 89,584.95 : x
  2. Step 2: Convert to fraction form
    119,201.79/178,636.44 = 89,584.95/x
  3. Step 3: Cross multiply
    119,201.79x = 178,636.44 × 89,584.95
  4. Step 4: Simplify right side
    119,201.79x = 16,003,136,545.58
  5. Step 5: Solve for x
    x = 16,003,136,545.58/119,201.79
  6. Step 6: Final answer
    x = 134,252.49

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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.