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Finding the Fourth Proportional to 517,166.20, 775,749.18 and 162,211.24

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Solution

The fourth proportional to 517,166.20, 775,749.18 and 162,211.24 is: 243,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,166.20 : 775,749.18 = 162,211.24 : x
  2. Step 2: Convert to fraction form
    517,166.20/775,749.18 = 162,211.24/x
  3. Step 3: Cross multiply
    517,166.20x = 775,749.18 × 162,211.24
  4. Step 4: Simplify right side
    517,166.20x = 125,835,236,416.78
  5. Step 5: Solve for x
    x = 125,835,236,416.78/517,166.20
  6. Step 6: Final answer
    x = 243,316.82

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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.