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Finding the Fourth Proportional to 197,352.50, 272,352.93 and 107,928.50

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Solution

The fourth proportional to 197,352.50, 272,352.93 and 107,928.50 is: 148,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,352.50 : 272,352.93 = 107,928.50 : x
  2. Step 2: Convert to fraction form
    197,352.50/272,352.93 = 107,928.50/x
  3. Step 3: Cross multiply
    197,352.50x = 272,352.93 × 107,928.50
  4. Step 4: Simplify right side
    197,352.50x = 29,394,643,205.51
  5. Step 5: Solve for x
    x = 29,394,643,205.51/197,352.50
  6. Step 6: Final answer
    x = 148,944.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.