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Finding the Fourth Proportional to 239,421.66, 358,245.39 and 191,892.59

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Solution

The fourth proportional to 239,421.66, 358,245.39 and 191,892.59 is: 287,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,421.66 : 358,245.39 = 191,892.59 : x
  2. Step 2: Convert to fraction form
    239,421.66/358,245.39 = 191,892.59/x
  3. Step 3: Cross multiply
    239,421.66x = 358,245.39 × 191,892.59
  4. Step 4: Simplify right side
    239,421.66x = 68,744,635,742.66
  5. Step 5: Solve for x
    x = 68,744,635,742.66/239,421.66
  6. Step 6: Final answer
    x = 287,127.89

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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.