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Finding the Fourth Proportional to 193,142.93, 266,549.55 and 108,260

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Solution

The fourth proportional to 193,142.93, 266,549.55 and 108,260 is: 149,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,142.93 : 266,549.55 = 108,260 : x
  2. Step 2: Convert to fraction form
    193,142.93/266,549.55 = 108,260/x
  3. Step 3: Cross multiply
    193,142.93x = 266,549.55 × 108,260
  4. Step 4: Simplify right side
    193,142.93x = 28,856,654,283
  5. Step 5: Solve for x
    x = 28,856,654,283/193,142.93
  6. Step 6: Final answer
    x = 149,405.70

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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.