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Finding the Fourth Proportional to 201,667.20, 302,500.80 and 188,545.20

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Solution

The fourth proportional to 201,667.20, 302,500.80 and 188,545.20 is: 282,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,667.20 : 302,500.80 = 188,545.20 : x
  2. Step 2: Convert to fraction form
    201,667.20/302,500.80 = 188,545.20/x
  3. Step 3: Cross multiply
    201,667.20x = 302,500.80 × 188,545.20
  4. Step 4: Simplify right side
    201,667.20x = 57,035,073,836.16
  5. Step 5: Solve for x
    x = 57,035,073,836.16/201,667.20
  6. Step 6: Final answer
    x = 282,817.80

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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.