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Finding the Fourth Proportional to 162,028.53, 243,039.92 and 43,712.37

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Solution

The fourth proportional to 162,028.53, 243,039.92 and 43,712.37 is: 65,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,028.53 : 243,039.92 = 43,712.37 : x
  2. Step 2: Convert to fraction form
    162,028.53/243,039.92 = 43,712.37/x
  3. Step 3: Cross multiply
    162,028.53x = 243,039.92 × 43,712.37
  4. Step 4: Simplify right side
    162,028.53x = 10,623,850,689.25
  5. Step 5: Solve for x
    x = 10,623,850,689.25/162,028.53
  6. Step 6: Final answer
    x = 65,567.78

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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.