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Finding the Fourth Proportional to 54,266.60, 81,399.90 and 37,645.40

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Solution

The fourth proportional to 54,266.60, 81,399.90 and 37,645.40 is: 56,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,266.60 : 81,399.90 = 37,645.40 : x
  2. Step 2: Convert to fraction form
    54,266.60/81,399.90 = 37,645.40/x
  3. Step 3: Cross multiply
    54,266.60x = 81,399.90 × 37,645.40
  4. Step 4: Simplify right side
    54,266.60x = 3,064,331,795.46
  5. Step 5: Solve for x
    x = 3,064,331,795.46/54,266.60
  6. Step 6: Final answer
    x = 56,468.10

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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.