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Finding the Fourth Proportional to 66,185.54, 99,327.53 and 26,742.99

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Solution

The fourth proportional to 66,185.54, 99,327.53 and 26,742.99 is: 40,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,185.54 : 99,327.53 = 26,742.99 : x
  2. Step 2: Convert to fraction form
    66,185.54/99,327.53 = 26,742.99/x
  3. Step 3: Cross multiply
    66,185.54x = 99,327.53 × 26,742.99
  4. Step 4: Simplify right side
    66,185.54x = 2,656,315,141.51
  5. Step 5: Solve for x
    x = 2,656,315,141.51/66,185.54
  6. Step 6: Final answer
    x = 40,134.37

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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.