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Finding the Fourth Proportional to 193,164.47, 266,556.08 and 112,605.11

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Solution

The fourth proportional to 193,164.47, 266,556.08 and 112,605.11 is: 155,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,164.47 : 266,556.08 = 112,605.11 : x
  2. Step 2: Convert to fraction form
    193,164.47/266,556.08 = 112,605.11/x
  3. Step 3: Cross multiply
    193,164.47x = 266,556.08 × 112,605.11
  4. Step 4: Simplify right side
    193,164.47x = 30,015,576,709.57
  5. Step 5: Solve for x
    x = 30,015,576,709.57/193,164.47
  6. Step 6: Final answer
    x = 155,388.70

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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.