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Finding the Fourth Proportional to 395,181.42, 592,772.13 and 145,863.42

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Solution

The fourth proportional to 395,181.42, 592,772.13 and 145,863.42 is: 218,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,181.42 : 592,772.13 = 145,863.42 : x
  2. Step 2: Convert to fraction form
    395,181.42/592,772.13 = 145,863.42/x
  3. Step 3: Cross multiply
    395,181.42x = 592,772.13 × 145,863.42
  4. Step 4: Simplify right side
    395,181.42x = 86,463,770,162.48
  5. Step 5: Solve for x
    x = 86,463,770,162.48/395,181.42
  6. Step 6: Final answer
    x = 218,795.13

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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.