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Finding the Fourth Proportional to 66,464.92, 91,651.93 and 43,774.93

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Solution

The fourth proportional to 66,464.92, 91,651.93 and 43,774.93 is: 60,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.92 : 91,651.93 = 43,774.93 : x
  2. Step 2: Convert to fraction form
    66,464.92/91,651.93 = 43,774.93/x
  3. Step 3: Cross multiply
    66,464.92x = 91,651.93 × 43,774.93
  4. Step 4: Simplify right side
    66,464.92x = 4,012,056,820.11
  5. Step 5: Solve for x
    x = 4,012,056,820.11/66,464.92
  6. Step 6: Final answer
    x = 60,363.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.