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Finding the Fourth Proportional to 221,713.01, 332,602.37 and 81,460.70

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Solution

The fourth proportional to 221,713.01, 332,602.37 and 81,460.70 is: 122,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,713.01 : 332,602.37 = 81,460.70 : x
  2. Step 2: Convert to fraction form
    221,713.01/332,602.37 = 81,460.70/x
  3. Step 3: Cross multiply
    221,713.01x = 332,602.37 × 81,460.70
  4. Step 4: Simplify right side
    221,713.01x = 27,094,019,811.54
  5. Step 5: Solve for x
    x = 27,094,019,811.54/221,713.01
  6. Step 6: Final answer
    x = 122,203.11

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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.