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Finding the Fourth Proportional to 286,652.60, 429,387.60 and 167,964.20

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Solution

The fourth proportional to 286,652.60, 429,387.60 and 167,964.20 is: 251,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,652.60 : 429,387.60 = 167,964.20 : x
  2. Step 2: Convert to fraction form
    286,652.60/429,387.60 = 167,964.20/x
  3. Step 3: Cross multiply
    286,652.60x = 429,387.60 × 167,964.20
  4. Step 4: Simplify right side
    286,652.60x = 72,121,744,723.92
  5. Step 5: Solve for x
    x = 72,121,744,723.92/286,652.60
  6. Step 6: Final answer
    x = 251,599.83

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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.