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Finding the Fourth Proportional to 201,648.52, 302,449.72 and 53,916.04

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Solution

The fourth proportional to 201,648.52, 302,449.72 and 53,916.04 is: 80,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,648.52 : 302,449.72 = 53,916.04 : x
  2. Step 2: Convert to fraction form
    201,648.52/302,449.72 = 53,916.04/x
  3. Step 3: Cross multiply
    201,648.52x = 302,449.72 × 53,916.04
  4. Step 4: Simplify right side
    201,648.52x = 16,306,891,201.51
  5. Step 5: Solve for x
    x = 16,306,891,201.51/201,648.52
  6. Step 6: Final answer
    x = 80,867.89

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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.