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Finding the Fourth Proportional to 319,792.36, 479,644.82 and 95,187.46

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Solution

The fourth proportional to 319,792.36, 479,644.82 and 95,187.46 is: 142,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,792.36 : 479,644.82 = 95,187.46 : x
  2. Step 2: Convert to fraction form
    319,792.36/479,644.82 = 95,187.46/x
  3. Step 3: Cross multiply
    319,792.36x = 479,644.82 × 95,187.46
  4. Step 4: Simplify right side
    319,792.36x = 45,656,172,117.96
  5. Step 5: Solve for x
    x = 45,656,172,117.96/319,792.36
  6. Step 6: Final answer
    x = 142,768.18

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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.