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Finding the Fourth Proportional to 207,375.76, 286,185 and 117,957.52

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Solution

The fourth proportional to 207,375.76, 286,185 and 117,957.52 is: 162,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,375.76 : 286,185 = 117,957.52 : x
  2. Step 2: Convert to fraction form
    207,375.76/286,185 = 117,957.52/x
  3. Step 3: Cross multiply
    207,375.76x = 286,185 × 117,957.52
  4. Step 4: Simplify right side
    207,375.76x = 33,757,672,861.20
  5. Step 5: Solve for x
    x = 33,757,672,861.20/207,375.76
  6. Step 6: Final answer
    x = 162,785.05

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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.