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Finding the Fourth Proportional to 292,388.70, 403,499.78 and 171,532.05

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Solution

The fourth proportional to 292,388.70, 403,499.78 and 171,532.05 is: 236,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,388.70 : 403,499.78 = 171,532.05 : x
  2. Step 2: Convert to fraction form
    292,388.70/403,499.78 = 171,532.05/x
  3. Step 3: Cross multiply
    292,388.70x = 403,499.78 × 171,532.05
  4. Step 4: Simplify right side
    292,388.70x = 69,213,141,562.79
  5. Step 5: Solve for x
    x = 69,213,141,562.79/292,388.70
  6. Step 6: Final answer
    x = 236,716.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.