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Finding the Fourth Proportional to 162,028.80, 243,043.20 and 161,044.65

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Solution

The fourth proportional to 162,028.80, 243,043.20 and 161,044.65 is: 241,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,028.80 : 243,043.20 = 161,044.65 : x
  2. Step 2: Convert to fraction form
    162,028.80/243,043.20 = 161,044.65/x
  3. Step 3: Cross multiply
    162,028.80x = 243,043.20 × 161,044.65
  4. Step 4: Simplify right side
    162,028.80x = 39,140,807,078.88
  5. Step 5: Solve for x
    x = 39,140,807,078.88/162,028.80
  6. Step 6: Final answer
    x = 241,566.98

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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.