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Finding the Fourth Proportional to 201,616.60, 302,133.30 and 89,204.80

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Solution

The fourth proportional to 201,616.60, 302,133.30 and 89,204.80 is: 133,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,616.60 : 302,133.30 = 89,204.80 : x
  2. Step 2: Convert to fraction form
    201,616.60/302,133.30 = 89,204.80/x
  3. Step 3: Cross multiply
    201,616.60x = 302,133.30 × 89,204.80
  4. Step 4: Simplify right side
    201,616.60x = 26,951,740,599.84
  5. Step 5: Solve for x
    x = 26,951,740,599.84/201,616.60
  6. Step 6: Final answer
    x = 133,678.18

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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.