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Finding the Fourth Proportional to 288,188.96, 397,699.20 and 167,359.91

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Solution

The fourth proportional to 288,188.96, 397,699.20 and 167,359.91 is: 230,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,188.96 : 397,699.20 = 167,359.91 : x
  2. Step 2: Convert to fraction form
    288,188.96/397,699.20 = 167,359.91/x
  3. Step 3: Cross multiply
    288,188.96x = 397,699.20 × 167,359.91
  4. Step 4: Simplify right side
    288,188.96x = 66,558,900,330.58
  5. Step 5: Solve for x
    x = 66,558,900,330.58/288,188.96
  6. Step 6: Final answer
    x = 230,955.76

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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.