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Finding the Fourth Proportional to 200,885.88, 301,320.17 and 60,640.32

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Solution

The fourth proportional to 200,885.88, 301,320.17 and 60,640.32 is: 90,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,885.88 : 301,320.17 = 60,640.32 : x
  2. Step 2: Convert to fraction form
    200,885.88/301,320.17 = 60,640.32/x
  3. Step 3: Cross multiply
    200,885.88x = 301,320.17 × 60,640.32
  4. Step 4: Simplify right side
    200,885.88x = 18,272,151,228.05
  5. Step 5: Solve for x
    x = 18,272,151,228.05/200,885.88
  6. Step 6: Final answer
    x = 90,957.87

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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.