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Finding the Fourth Proportional to 535,704.60, 803,586.06 and 161,717.88

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Solution

The fourth proportional to 535,704.60, 803,586.06 and 161,717.88 is: 242,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,704.60 : 803,586.06 = 161,717.88 : x
  2. Step 2: Convert to fraction form
    535,704.60/803,586.06 = 161,717.88/x
  3. Step 3: Cross multiply
    535,704.60x = 803,586.06 × 161,717.88
  4. Step 4: Simplify right side
    535,704.60x = 129,954,234,020.75
  5. Step 5: Solve for x
    x = 129,954,234,020.75/535,704.60
  6. Step 6: Final answer
    x = 242,585.62

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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.