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Finding the Fourth Proportional to 170,654.88, 256,023.52 and 64,039.68

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Solution

The fourth proportional to 170,654.88, 256,023.52 and 64,039.68 is: 96,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,654.88 : 256,023.52 = 64,039.68 : x
  2. Step 2: Convert to fraction form
    170,654.88/256,023.52 = 64,039.68/x
  3. Step 3: Cross multiply
    170,654.88x = 256,023.52 × 64,039.68
  4. Step 4: Simplify right side
    170,654.88x = 16,395,664,293.27
  5. Step 5: Solve for x
    x = 16,395,664,293.27/170,654.88
  6. Step 6: Final answer
    x = 96,074.98

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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.