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Finding the Fourth Proportional to 170,989.73, 256,499.17 and 44,646.74

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Solution

The fourth proportional to 170,989.73, 256,499.17 and 44,646.74 is: 66,973.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,989.73 : 256,499.17 = 44,646.74 : x
  2. Step 2: Convert to fraction form
    170,989.73/256,499.17 = 44,646.74/x
  3. Step 3: Cross multiply
    170,989.73x = 256,499.17 × 44,646.74
  4. Step 4: Simplify right side
    170,989.73x = 11,451,850,359.09
  5. Step 5: Solve for x
    x = 11,451,850,359.09/170,989.73
  6. Step 6: Final answer
    x = 66,973.91

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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.