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Finding the Fourth Proportional to 118,889.60, 164,084.42 and 73,582.12

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Solution

The fourth proportional to 118,889.60, 164,084.42 and 73,582.12 is: 101,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889.60 : 164,084.42 = 73,582.12 : x
  2. Step 2: Convert to fraction form
    118,889.60/164,084.42 = 73,582.12/x
  3. Step 3: Cross multiply
    118,889.60x = 164,084.42 × 73,582.12
  4. Step 4: Simplify right side
    118,889.60x = 12,073,679,482.57
  5. Step 5: Solve for x
    x = 12,073,679,482.57/118,889.60
  6. Step 6: Final answer
    x = 101,553.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.