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Finding the Fourth Proportional to 288,269.76, 432,256.79 and 168,560.60

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Solution

The fourth proportional to 288,269.76, 432,256.79 and 168,560.60 is: 252,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,269.76 : 432,256.79 = 168,560.60 : x
  2. Step 2: Convert to fraction form
    288,269.76/432,256.79 = 168,560.60/x
  3. Step 3: Cross multiply
    288,269.76x = 432,256.79 × 168,560.60
  4. Step 4: Simplify right side
    288,269.76x = 72,861,463,619.88
  5. Step 5: Solve for x
    x = 72,861,463,619.88/288,269.76
  6. Step 6: Final answer
    x = 252,754.45

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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.