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Finding the Fourth Proportional to 108,464.40, 162,777.60 and 55,846.80

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Solution

The fourth proportional to 108,464.40, 162,777.60 and 55,846.80 is: 83,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,464.40 : 162,777.60 = 55,846.80 : x
  2. Step 2: Convert to fraction form
    108,464.40/162,777.60 = 55,846.80/x
  3. Step 3: Cross multiply
    108,464.40x = 162,777.60 × 55,846.80
  4. Step 4: Simplify right side
    108,464.40x = 9,090,608,071.68
  5. Step 5: Solve for x
    x = 9,090,608,071.68/108,464.40
  6. Step 6: Final answer
    x = 83,811.91

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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.