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Finding the Fourth Proportional to 220,102.82, 303,061.79 and 171,899.46

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Solution

The fourth proportional to 220,102.82, 303,061.79 and 171,899.46 is: 236,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,102.82 : 303,061.79 = 171,899.46 : x
  2. Step 2: Convert to fraction form
    220,102.82/303,061.79 = 171,899.46/x
  3. Step 3: Cross multiply
    220,102.82x = 303,061.79 × 171,899.46
  4. Step 4: Simplify right side
    220,102.82x = 52,096,158,047.63
  5. Step 5: Solve for x
    x = 52,096,158,047.63/220,102.82
  6. Step 6: Final answer
    x = 236,690.10

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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.