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Finding the Fourth Proportional to 365,321.40, 547,722.90 and 165,737.40

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Solution

The fourth proportional to 365,321.40, 547,722.90 and 165,737.40 is: 248,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,321.40 : 547,722.90 = 165,737.40 : x
  2. Step 2: Convert to fraction form
    365,321.40/547,722.90 = 165,737.40/x
  3. Step 3: Cross multiply
    365,321.40x = 547,722.90 × 165,737.40
  4. Step 4: Simplify right side
    365,321.40x = 90,778,169,366.46
  5. Step 5: Solve for x
    x = 90,778,169,366.46/365,321.40
  6. Step 6: Final answer
    x = 248,488.51

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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.