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Finding the Fourth Proportional to 172,898.10, 259,284.75 and 73,066.01

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Solution

The fourth proportional to 172,898.10, 259,284.75 and 73,066.01 is: 109,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,898.10 : 259,284.75 = 73,066.01 : x
  2. Step 2: Convert to fraction form
    172,898.10/259,284.75 = 73,066.01/x
  3. Step 3: Cross multiply
    172,898.10x = 259,284.75 × 73,066.01
  4. Step 4: Simplify right side
    172,898.10x = 18,944,902,136.35
  5. Step 5: Solve for x
    x = 18,944,902,136.35/172,898.10
  6. Step 6: Final answer
    x = 109,572.65

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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.