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Finding the Fourth Proportional to 66,517.70, 99,776.54 and 44,374.32

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Solution

The fourth proportional to 66,517.70, 99,776.54 and 44,374.32 is: 66,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517.70 : 99,776.54 = 44,374.32 : x
  2. Step 2: Convert to fraction form
    66,517.70/99,776.54 = 44,374.32/x
  3. Step 3: Cross multiply
    66,517.70x = 99,776.54 × 44,374.32
  4. Step 4: Simplify right side
    66,517.70x = 4,427,516,114.45
  5. Step 5: Solve for x
    x = 4,427,516,114.45/66,517.70
  6. Step 6: Final answer
    x = 66,561.47

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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.