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Finding the Fourth Proportional to 163,665.79, 225,856.62 and 92,045.81

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Solution

The fourth proportional to 163,665.79, 225,856.62 and 92,045.81 is: 127,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,665.79 : 225,856.62 = 92,045.81 : x
  2. Step 2: Convert to fraction form
    163,665.79/225,856.62 = 92,045.81/x
  3. Step 3: Cross multiply
    163,665.79x = 225,856.62 × 92,045.81
  4. Step 4: Simplify right side
    163,665.79x = 20,789,155,072.86
  5. Step 5: Solve for x
    x = 20,789,155,072.86/163,665.79
  6. Step 6: Final answer
    x = 127,021.99

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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.