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Finding the Fourth Proportional to 331,635.64, 497,451.54 and 94,978.34

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Solution

The fourth proportional to 331,635.64, 497,451.54 and 94,978.34 is: 142,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,635.64 : 497,451.54 = 94,978.34 : x
  2. Step 2: Convert to fraction form
    331,635.64/497,451.54 = 94,978.34/x
  3. Step 3: Cross multiply
    331,635.64x = 497,451.54 × 94,978.34
  4. Step 4: Simplify right side
    331,635.64x = 47,247,121,499.64
  5. Step 5: Solve for x
    x = 47,247,121,499.64/331,635.64
  6. Step 6: Final answer
    x = 142,466.96

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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.