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Finding the Fourth Proportional to 320,373.17, 480,757.40 and 162,714.77

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Solution

The fourth proportional to 320,373.17, 480,757.40 and 162,714.77 is: 244,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,373.17 : 480,757.40 = 162,714.77 : x
  2. Step 2: Convert to fraction form
    320,373.17/480,757.40 = 162,714.77/x
  3. Step 3: Cross multiply
    320,373.17x = 480,757.40 × 162,714.77
  4. Step 4: Simplify right side
    320,373.17x = 78,226,329,766.80
  5. Step 5: Solve for x
    x = 78,226,329,766.80/320,373.17
  6. Step 6: Final answer
    x = 244,172.54

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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.