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Finding the Fourth Proportional to 190,473.62, 285,758.01 and 134,423.14

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Solution

The fourth proportional to 190,473.62, 285,758.01 and 134,423.14 is: 201,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,473.62 : 285,758.01 = 134,423.14 : x
  2. Step 2: Convert to fraction form
    190,473.62/285,758.01 = 134,423.14/x
  3. Step 3: Cross multiply
    190,473.62x = 285,758.01 × 134,423.14
  4. Step 4: Simplify right side
    190,473.62x = 38,412,488,984.35
  5. Step 5: Solve for x
    x = 38,412,488,984.35/190,473.62
  6. Step 6: Final answer
    x = 201,668.29

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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.