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Finding the Fourth Proportional to 179,207.64, 268,623.72 and 66,842.64

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Solution

The fourth proportional to 179,207.64, 268,623.72 and 66,842.64 is: 100,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,207.64 : 268,623.72 = 66,842.64 : x
  2. Step 2: Convert to fraction form
    179,207.64/268,623.72 = 66,842.64/x
  3. Step 3: Cross multiply
    179,207.64x = 268,623.72 × 66,842.64
  4. Step 4: Simplify right side
    179,207.64x = 17,955,518,611.42
  5. Step 5: Solve for x
    x = 17,955,518,611.42/179,207.64
  6. Step 6: Final answer
    x = 100,193.93

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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.