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Finding the Fourth Proportional to 322,362.60, 483,641.10 and 172,674.60

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Solution

The fourth proportional to 322,362.60, 483,641.10 and 172,674.60 is: 259,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,362.60 : 483,641.10 = 172,674.60 : x
  2. Step 2: Convert to fraction form
    322,362.60/483,641.10 = 172,674.60/x
  3. Step 3: Cross multiply
    322,362.60x = 483,641.10 × 172,674.60
  4. Step 4: Simplify right side
    322,362.60x = 83,512,533,486.06
  5. Step 5: Solve for x
    x = 83,512,533,486.06/322,362.60
  6. Step 6: Final answer
    x = 259,063.97

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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.