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Finding the Fourth Proportional to 201,145.01, 301,717.50 and 51,385.62

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Solution

The fourth proportional to 201,145.01, 301,717.50 and 51,385.62 is: 77,078.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,145.01 : 301,717.50 = 51,385.62 : x
  2. Step 2: Convert to fraction form
    201,145.01/301,717.50 = 51,385.62/x
  3. Step 3: Cross multiply
    201,145.01x = 301,717.50 × 51,385.62
  4. Step 4: Simplify right side
    201,145.01x = 15,503,940,802.35
  5. Step 5: Solve for x
    x = 15,503,940,802.35/201,145.01
  6. Step 6: Final answer
    x = 77,078.43

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1.5x scale

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.