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Finding the Fourth Proportional to 331,065.35, 456,838.56 and 185,837.86

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Solution

The fourth proportional to 331,065.35, 456,838.56 and 185,837.86 is: 256,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,065.35 : 456,838.56 = 185,837.86 : x
  2. Step 2: Convert to fraction form
    331,065.35/456,838.56 = 185,837.86/x
  3. Step 3: Cross multiply
    331,065.35x = 456,838.56 × 185,837.86
  4. Step 4: Simplify right side
    331,065.35x = 84,897,900,355.88
  5. Step 5: Solve for x
    x = 84,897,900,355.88/331,065.35
  6. Step 6: Final answer
    x = 256,438.50

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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.