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Finding the Fourth Proportional to 272,311.70, 375,761.49 and 151,433.42

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Solution

The fourth proportional to 272,311.70, 375,761.49 and 151,433.42 is: 208,962.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,311.70 : 375,761.49 = 151,433.42 : x
  2. Step 2: Convert to fraction form
    272,311.70/375,761.49 = 151,433.42/x
  3. Step 3: Cross multiply
    272,311.70x = 375,761.49 × 151,433.42
  4. Step 4: Simplify right side
    272,311.70x = 56,902,847,535.00
  5. Step 5: Solve for x
    x = 56,902,847,535.00/272,311.70
  6. Step 6: Final answer
    x = 208,962.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.