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Finding the Fourth Proportional to 200,792.04, 300,786.37 and 120,785.88

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Solution

The fourth proportional to 200,792.04, 300,786.37 and 120,785.88 is: 180,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,792.04 : 300,786.37 = 120,785.88 : x
  2. Step 2: Convert to fraction form
    200,792.04/300,786.37 = 120,785.88/x
  3. Step 3: Cross multiply
    200,792.04x = 300,786.37 × 120,785.88
  4. Step 4: Simplify right side
    200,792.04x = 36,330,746,392.46
  5. Step 5: Solve for x
    x = 36,330,746,392.46/200,792.04
  6. Step 6: Final answer
    x = 180,937.18

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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.