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Finding the Fourth Proportional to 236,366.73, 354,485.64 and 78,574.68

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Solution

The fourth proportional to 236,366.73, 354,485.64 and 78,574.68 is: 117,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,366.73 : 354,485.64 = 78,574.68 : x
  2. Step 2: Convert to fraction form
    236,366.73/354,485.64 = 78,574.68/x
  3. Step 3: Cross multiply
    236,366.73x = 354,485.64 × 78,574.68
  4. Step 4: Simplify right side
    236,366.73x = 27,853,595,727.60
  5. Step 5: Solve for x
    x = 27,853,595,727.60/236,366.73
  6. Step 6: Final answer
    x = 117,840.59

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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.