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Finding the Fourth Proportional to 66,207.60, 99,227.70 and 26,742.60

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Solution

The fourth proportional to 66,207.60, 99,227.70 and 26,742.60 is: 40,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.60 : 99,227.70 = 26,742.60 : x
  2. Step 2: Convert to fraction form
    66,207.60/99,227.70 = 26,742.60/x
  3. Step 3: Cross multiply
    66,207.60x = 99,227.70 × 26,742.60
  4. Step 4: Simplify right side
    66,207.60x = 2,653,606,690.02
  5. Step 5: Solve for x
    x = 2,653,606,690.02/66,207.60
  6. Step 6: Final answer
    x = 40,080.09

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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.