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Finding the Fourth Proportional to 179,659.88, 269,374.62 and 74,551.40

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Solution

The fourth proportional to 179,659.88, 269,374.62 and 74,551.40 is: 111,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,659.88 : 269,374.62 = 74,551.40 : x
  2. Step 2: Convert to fraction form
    179,659.88/269,374.62 = 74,551.40/x
  3. Step 3: Cross multiply
    179,659.88x = 269,374.62 × 74,551.40
  4. Step 4: Simplify right side
    179,659.88x = 20,082,255,045.47
  5. Step 5: Solve for x
    x = 20,082,255,045.47/179,659.88
  6. Step 6: Final answer
    x = 111,779.30

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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.