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Finding the Fourth Proportional to 126,502.54, 189,600.34 and 92,911.11

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Solution

The fourth proportional to 126,502.54, 189,600.34 and 92,911.11 is: 139,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,502.54 : 189,600.34 = 92,911.11 : x
  2. Step 2: Convert to fraction form
    126,502.54/189,600.34 = 92,911.11/x
  3. Step 3: Cross multiply
    126,502.54x = 189,600.34 × 92,911.11
  4. Step 4: Simplify right side
    126,502.54x = 17,615,978,045.78
  5. Step 5: Solve for x
    x = 17,615,978,045.78/126,502.54
  6. Step 6: Final answer
    x = 139,253.95

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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.