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Finding the Fourth Proportional to 133,849.62, 200,792.97 and 45,128.51

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Solution

The fourth proportional to 133,849.62, 200,792.97 and 45,128.51 is: 67,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,849.62 : 200,792.97 = 45,128.51 : x
  2. Step 2: Convert to fraction form
    133,849.62/200,792.97 = 45,128.51/x
  3. Step 3: Cross multiply
    133,849.62x = 200,792.97 × 45,128.51
  4. Step 4: Simplify right side
    133,849.62x = 9,061,486,550.61
  5. Step 5: Solve for x
    x = 9,061,486,550.61/133,849.62
  6. Step 6: Final answer
    x = 67,699.01

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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.