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Finding the Fourth Proportional to 250,784.70, 346,082.82 and 143,357.04

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Solution

The fourth proportional to 250,784.70, 346,082.82 and 143,357.04 is: 197,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,784.70 : 346,082.82 = 143,357.04 : x
  2. Step 2: Convert to fraction form
    250,784.70/346,082.82 = 143,357.04/x
  3. Step 3: Cross multiply
    250,784.70x = 346,082.82 × 143,357.04
  4. Step 4: Simplify right side
    250,784.70x = 49,613,408,670.05
  5. Step 5: Solve for x
    x = 49,613,408,670.05/250,784.70
  6. Step 6: Final answer
    x = 197,832.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.