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Finding the Fourth Proportional to 60,631.66, 90,473.30 and 54,327.45

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Solution

The fourth proportional to 60,631.66, 90,473.30 and 54,327.45 is: 81,066.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,631.66 : 90,473.30 = 54,327.45 : x
  2. Step 2: Convert to fraction form
    60,631.66/90,473.30 = 54,327.45/x
  3. Step 3: Cross multiply
    60,631.66x = 90,473.30 × 54,327.45
  4. Step 4: Simplify right side
    60,631.66x = 4,915,183,682.09
  5. Step 5: Solve for x
    x = 4,915,183,682.09/60,631.66
  6. Step 6: Final answer
    x = 81,066.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.