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Finding the Fourth Proportional to 356,575.30, 492,051.61 and 195,418.91

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Solution

The fourth proportional to 356,575.30, 492,051.61 and 195,418.91 is: 269,665.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,575.30 : 492,051.61 = 195,418.91 : x
  2. Step 2: Convert to fraction form
    356,575.30/492,051.61 = 195,418.91/x
  3. Step 3: Cross multiply
    356,575.30x = 492,051.61 × 195,418.91
  4. Step 4: Simplify right side
    356,575.30x = 96,156,190,031.53
  5. Step 5: Solve for x
    x = 96,156,190,031.53/356,575.30
  6. Step 6: Final answer
    x = 269,665.88

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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.