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Finding the Fourth Proportional to 73,858.48, 110,661.68 and 40,606.40

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Solution

The fourth proportional to 73,858.48, 110,661.68 and 40,606.40 is: 60,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,858.48 : 110,661.68 = 40,606.40 : x
  2. Step 2: Convert to fraction form
    73,858.48/110,661.68 = 40,606.40/x
  3. Step 3: Cross multiply
    73,858.48x = 110,661.68 × 40,606.40
  4. Step 4: Simplify right side
    73,858.48x = 4,493,572,442.75
  5. Step 5: Solve for x
    x = 4,493,572,442.75/73,858.48
  6. Step 6: Final answer
    x = 60,840.30

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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.