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Finding the Fourth Proportional to 356,181.53, 534,372.18 and 143,099.07

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Solution

The fourth proportional to 356,181.53, 534,372.18 and 143,099.07 is: 214,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,181.53 : 534,372.18 = 143,099.07 : x
  2. Step 2: Convert to fraction form
    356,181.53/534,372.18 = 143,099.07/x
  3. Step 3: Cross multiply
    356,181.53x = 534,372.18 × 143,099.07
  4. Step 4: Simplify right side
    356,181.53x = 76,468,161,276.38
  5. Step 5: Solve for x
    x = 76,468,161,276.38/356,181.53
  6. Step 6: Final answer
    x = 214,688.74

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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.