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Finding the Fourth Proportional to 453,203.31, 679,192.59 and 172,567.47

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Solution

The fourth proportional to 453,203.31, 679,192.59 and 172,567.47 is: 258,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,203.31 : 679,192.59 = 172,567.47 : x
  2. Step 2: Convert to fraction form
    453,203.31/679,192.59 = 172,567.47/x
  3. Step 3: Cross multiply
    453,203.31x = 679,192.59 × 172,567.47
  4. Step 4: Simplify right side
    453,203.31x = 117,206,546,036.21
  5. Step 5: Solve for x
    x = 117,206,546,036.21/453,203.31
  6. Step 6: Final answer
    x = 258,618.03

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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.