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Finding the Fourth Proportional to 66,164.67, 99,374.64 and 56,698.44

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Solution

The fourth proportional to 66,164.67, 99,374.64 and 56,698.44 is: 85,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.67 : 99,374.64 = 56,698.44 : x
  2. Step 2: Convert to fraction form
    66,164.67/99,374.64 = 56,698.44/x
  3. Step 3: Cross multiply
    66,164.67x = 99,374.64 × 56,698.44
  4. Step 4: Simplify right side
    66,164.67x = 5,634,387,063.56
  5. Step 5: Solve for x
    x = 5,634,387,063.56/66,164.67
  6. Step 6: Final answer
    x = 85,157.03

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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.