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Finding the Fourth Proportional to 200,208.61, 300,339.34 and 73,937.61

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Solution

The fourth proportional to 200,208.61, 300,339.34 and 73,937.61 is: 110,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,208.61 : 300,339.34 = 73,937.61 : x
  2. Step 2: Convert to fraction form
    200,208.61/300,339.34 = 73,937.61/x
  3. Step 3: Cross multiply
    200,208.61x = 300,339.34 × 73,937.61
  4. Step 4: Simplify right side
    200,208.61x = 22,206,373,219.63
  5. Step 5: Solve for x
    x = 22,206,373,219.63/200,208.61
  6. Step 6: Final answer
    x = 110,916.17

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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.