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Finding the Fourth Proportional to 54,308.10, 81,462.15 and 36,593.40

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Solution

The fourth proportional to 54,308.10, 81,462.15 and 36,593.40 is: 54,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,308.10 : 81,462.15 = 36,593.40 : x
  2. Step 2: Convert to fraction form
    54,308.10/81,462.15 = 36,593.40/x
  3. Step 3: Cross multiply
    54,308.10x = 81,462.15 × 36,593.40
  4. Step 4: Simplify right side
    54,308.10x = 2,980,977,039.81
  5. Step 5: Solve for x
    x = 2,980,977,039.81/54,308.10
  6. Step 6: Final answer
    x = 54,890.10

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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.