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Finding the Fourth Proportional to 453,077.78, 679,192.22 and 153,348.62

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Solution

The fourth proportional to 453,077.78, 679,192.22 and 153,348.62 is: 229,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,077.78 : 679,192.22 = 153,348.62 : x
  2. Step 2: Convert to fraction form
    453,077.78/679,192.22 = 153,348.62/x
  3. Step 3: Cross multiply
    453,077.78x = 679,192.22 × 153,348.62
  4. Step 4: Simplify right side
    453,077.78x = 104,153,189,651.74
  5. Step 5: Solve for x
    x = 104,153,189,651.74/453,077.78
  6. Step 6: Final answer
    x = 229,879.27

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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.