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Finding the Fourth Proportional to 299,345.49, 448,779.83 and 172,842.26

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Solution

The fourth proportional to 299,345.49, 448,779.83 and 172,842.26 is: 259,125.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,345.49 : 448,779.83 = 172,842.26 : x
  2. Step 2: Convert to fraction form
    299,345.49/448,779.83 = 172,842.26/x
  3. Step 3: Cross multiply
    299,345.49x = 448,779.83 × 172,842.26
  4. Step 4: Simplify right side
    299,345.49x = 77,568,116,951.51
  5. Step 5: Solve for x
    x = 77,568,116,951.51/299,345.49
  6. Step 6: Final answer
    x = 259,125.72

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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.