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Finding the Fourth Proportional to 169,196.60, 253,785.56 and 56,865.21

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Solution

The fourth proportional to 169,196.60, 253,785.56 and 56,865.21 is: 85,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,196.60 : 253,785.56 = 56,865.21 : x
  2. Step 2: Convert to fraction form
    169,196.60/253,785.56 = 56,865.21/x
  3. Step 3: Cross multiply
    169,196.60x = 253,785.56 × 56,865.21
  4. Step 4: Simplify right side
    169,196.60x = 14,431,570,069.66
  5. Step 5: Solve for x
    x = 14,431,570,069.66/169,196.60
  6. Step 6: Final answer
    x = 85,294.68

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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.