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Finding the Fourth Proportional to 201,881.70, 302,822.55 and 192,696.30

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Solution

The fourth proportional to 201,881.70, 302,822.55 and 192,696.30 is: 289,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,881.70 : 302,822.55 = 192,696.30 : x
  2. Step 2: Convert to fraction form
    201,881.70/302,822.55 = 192,696.30/x
  3. Step 3: Cross multiply
    201,881.70x = 302,822.55 × 192,696.30
  4. Step 4: Simplify right side
    201,881.70x = 58,352,784,941.57
  5. Step 5: Solve for x
    x = 58,352,784,941.57/201,881.70
  6. Step 6: Final answer
    x = 289,044.45

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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.