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Finding the Fourth Proportional to 200,415.30, 300,650.64 and 67,333.62

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Solution

The fourth proportional to 200,415.30, 300,650.64 and 67,333.62 is: 101,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,415.30 : 300,650.64 = 67,333.62 : x
  2. Step 2: Convert to fraction form
    200,415.30/300,650.64 = 67,333.62/x
  3. Step 3: Cross multiply
    200,415.30x = 300,650.64 × 67,333.62
  4. Step 4: Simplify right side
    200,415.30x = 20,243,895,946.52
  5. Step 5: Solve for x
    x = 20,243,895,946.52/200,415.30
  6. Step 6: Final answer
    x = 101,009.73

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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.