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Finding the Fourth Proportional to 132,069.60, 197,958.60 and 72,947.70

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Solution

The fourth proportional to 132,069.60, 197,958.60 and 72,947.70 is: 109,341.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,069.60 : 197,958.60 = 72,947.70 : x
  2. Step 2: Convert to fraction form
    132,069.60/197,958.60 = 72,947.70/x
  3. Step 3: Cross multiply
    132,069.60x = 197,958.60 × 72,947.70
  4. Step 4: Simplify right side
    132,069.60x = 14,440,624,565.22
  5. Step 5: Solve for x
    x = 14,440,624,565.22/132,069.60
  6. Step 6: Final answer
    x = 109,341.02

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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.