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Finding the Fourth Proportional to 499,396.92, 749,166.46 and 162,329.20

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Solution

The fourth proportional to 499,396.92, 749,166.46 and 162,329.20 is: 243,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,396.92 : 749,166.46 = 162,329.20 : x
  2. Step 2: Convert to fraction form
    499,396.92/749,166.46 = 162,329.20/x
  3. Step 3: Cross multiply
    499,396.92x = 749,166.46 × 162,329.20
  4. Step 4: Simplify right side
    499,396.92x = 121,611,592,118.63
  5. Step 5: Solve for x
    x = 121,611,592,118.63/499,396.92
  6. Step 6: Final answer
    x = 243,516.90

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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.