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Finding the Fourth Proportional to 185,804.96, 278,818.24 and 67,485.60

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Solution

The fourth proportional to 185,804.96, 278,818.24 and 67,485.60 is: 101,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,804.96 : 278,818.24 = 67,485.60 : x
  2. Step 2: Convert to fraction form
    185,804.96/278,818.24 = 67,485.60/x
  3. Step 3: Cross multiply
    185,804.96x = 278,818.24 × 67,485.60
  4. Step 4: Simplify right side
    185,804.96x = 18,816,216,217.34
  5. Step 5: Solve for x
    x = 18,816,216,217.34/185,804.96
  6. Step 6: Final answer
    x = 101,268.64

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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.