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Finding the Fourth Proportional to 66,114.92, 91,264.64 and 44,617.39

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Solution

The fourth proportional to 66,114.92, 91,264.64 and 44,617.39 is: 61,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.92 : 91,264.64 = 44,617.39 : x
  2. Step 2: Convert to fraction form
    66,114.92/91,264.64 = 44,617.39/x
  3. Step 3: Cross multiply
    66,114.92x = 91,264.64 × 44,617.39
  4. Step 4: Simplify right side
    66,114.92x = 4,071,990,289.29
  5. Step 5: Solve for x
    x = 4,071,990,289.29/66,114.92
  6. Step 6: Final answer
    x = 61,589.58

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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.