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Finding the Fourth Proportional to 193,401.53, 266,889.92 and 107,355.54

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Solution

The fourth proportional to 193,401.53, 266,889.92 and 107,355.54 is: 148,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,401.53 : 266,889.92 = 107,355.54 : x
  2. Step 2: Convert to fraction form
    193,401.53/266,889.92 = 107,355.54/x
  3. Step 3: Cross multiply
    193,401.53x = 266,889.92 × 107,355.54
  4. Step 4: Simplify right side
    193,401.53x = 28,652,109,944.54
  5. Step 5: Solve for x
    x = 28,652,109,944.54/193,401.53
  6. Step 6: Final answer
    x = 148,148.31

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1.5x scale

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.