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Finding the Fourth Proportional to 111,364.11, 167,046.17 and 91,582.70

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Solution

The fourth proportional to 111,364.11, 167,046.17 and 91,582.70 is: 137,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,364.11 : 167,046.17 = 91,582.70 : x
  2. Step 2: Convert to fraction form
    111,364.11/167,046.17 = 91,582.70/x
  3. Step 3: Cross multiply
    111,364.11x = 167,046.17 × 91,582.70
  4. Step 4: Simplify right side
    111,364.11x = 15,298,537,980.11
  5. Step 5: Solve for x
    x = 15,298,537,980.11/111,364.11
  6. Step 6: Final answer
    x = 137,374.04

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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.