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Finding the Fourth Proportional to 66,419.16, 99,741.62 and 44,374.20

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Solution

The fourth proportional to 66,419.16, 99,741.62 and 44,374.20 is: 66,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,419.16 : 99,741.62 = 44,374.20 : x
  2. Step 2: Convert to fraction form
    66,419.16/99,741.62 = 44,374.20/x
  3. Step 3: Cross multiply
    66,419.16x = 99,741.62 × 44,374.20
  4. Step 4: Simplify right side
    66,419.16x = 4,425,954,594.20
  5. Step 5: Solve for x
    x = 4,425,954,594.20/66,419.16
  6. Step 6: Final answer
    x = 66,636.71

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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.