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Finding the Fourth Proportional to 250,871.36, 346,184.40 and 143,445.92

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Solution

The fourth proportional to 250,871.36, 346,184.40 and 143,445.92 is: 197,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,871.36 : 346,184.40 = 143,445.92 : x
  2. Step 2: Convert to fraction form
    250,871.36/346,184.40 = 143,445.92/x
  3. Step 3: Cross multiply
    250,871.36x = 346,184.40 × 143,445.92
  4. Step 4: Simplify right side
    250,871.36x = 49,658,739,747.65
  5. Step 5: Solve for x
    x = 49,658,739,747.65/250,871.36
  6. Step 6: Final answer
    x = 197,945.03

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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.