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Finding the Fourth Proportional to 364,869.20, 547,109.40 and 154,269.20

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Solution

The fourth proportional to 364,869.20, 547,109.40 and 154,269.20 is: 231,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,869.20 : 547,109.40 = 154,269.20 : x
  2. Step 2: Convert to fraction form
    364,869.20/547,109.40 = 154,269.20/x
  3. Step 3: Cross multiply
    364,869.20x = 547,109.40 × 154,269.20
  4. Step 4: Simplify right side
    364,869.20x = 84,402,129,450.48
  5. Step 5: Solve for x
    x = 84,402,129,450.48/364,869.20
  6. Step 6: Final answer
    x = 231,321.61

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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.