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Finding the Fourth Proportional to 442,156.08, 610,191.72 and 251,201.82

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Solution

The fourth proportional to 442,156.08, 610,191.72 and 251,201.82 is: 346,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,156.08 : 610,191.72 = 251,201.82 : x
  2. Step 2: Convert to fraction form
    442,156.08/610,191.72 = 251,201.82/x
  3. Step 3: Cross multiply
    442,156.08x = 610,191.72 × 251,201.82
  4. Step 4: Simplify right side
    442,156.08x = 153,281,270,612.93
  5. Step 5: Solve for x
    x = 153,281,270,612.93/442,156.08
  6. Step 6: Final answer
    x = 346,667.79

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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.