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Finding the Fourth Proportional to 178,036.60, 267,054.90 and 171,815.80

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Solution

The fourth proportional to 178,036.60, 267,054.90 and 171,815.80 is: 257,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,036.60 : 267,054.90 = 171,815.80 : x
  2. Step 2: Convert to fraction form
    178,036.60/267,054.90 = 171,815.80/x
  3. Step 3: Cross multiply
    178,036.60x = 267,054.90 × 171,815.80
  4. Step 4: Simplify right side
    178,036.60x = 45,884,251,287.42
  5. Step 5: Solve for x
    x = 45,884,251,287.42/178,036.60
  6. Step 6: Final answer
    x = 257,723.70

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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.