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Finding the Fourth Proportional to 124,513.30, 186,769.95 and 54,529.30

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Solution

The fourth proportional to 124,513.30, 186,769.95 and 54,529.30 is: 81,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,513.30 : 186,769.95 = 54,529.30 : x
  2. Step 2: Convert to fraction form
    124,513.30/186,769.95 = 54,529.30/x
  3. Step 3: Cross multiply
    124,513.30x = 186,769.95 × 54,529.30
  4. Step 4: Simplify right side
    124,513.30x = 10,184,434,634.54
  5. Step 5: Solve for x
    x = 10,184,434,634.54/124,513.30
  6. Step 6: Final answer
    x = 81,793.95

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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.