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Finding the Fourth Proportional to 66,114.86, 99,039.94 and 37,955.86

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Solution

The fourth proportional to 66,114.86, 99,039.94 and 37,955.86 is: 56,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.86 : 99,039.94 = 37,955.86 : x
  2. Step 2: Convert to fraction form
    66,114.86/99,039.94 = 37,955.86/x
  3. Step 3: Cross multiply
    66,114.86x = 99,039.94 × 37,955.86
  4. Step 4: Simplify right side
    66,114.86x = 3,759,145,754.56
  5. Step 5: Solve for x
    x = 3,759,145,754.56/66,114.86
  6. Step 6: Final answer
    x = 56,857.81

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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.