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Finding the Fourth Proportional to 201,604.80, 302,407.20 and 61,363.20

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Solution

The fourth proportional to 201,604.80, 302,407.20 and 61,363.20 is: 92,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,604.80 : 302,407.20 = 61,363.20 : x
  2. Step 2: Convert to fraction form
    201,604.80/302,407.20 = 61,363.20/x
  3. Step 3: Cross multiply
    201,604.80x = 302,407.20 × 61,363.20
  4. Step 4: Simplify right side
    201,604.80x = 18,556,673,495.04
  5. Step 5: Solve for x
    x = 18,556,673,495.04/201,604.80
  6. Step 6: Final answer
    x = 92,044.80

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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.