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Finding the Fourth Proportional to 453,190.56, 679,342.50 and 187,175.22

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Solution

The fourth proportional to 453,190.56, 679,342.50 and 187,175.22 is: 280,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,190.56 : 679,342.50 = 187,175.22 : x
  2. Step 2: Convert to fraction form
    453,190.56/679,342.50 = 187,175.22/x
  3. Step 3: Cross multiply
    453,190.56x = 679,342.50 × 187,175.22
  4. Step 4: Simplify right side
    453,190.56x = 127,156,081,892.85
  5. Step 5: Solve for x
    x = 127,156,081,892.85/453,190.56
  6. Step 6: Final answer
    x = 280,579.72

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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.