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Finding the Fourth Proportional to 155,427.71, 232,836.47 and 80,596.77

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Solution

The fourth proportional to 155,427.71, 232,836.47 and 80,596.77 is: 120,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,427.71 : 232,836.47 = 80,596.77 : x
  2. Step 2: Convert to fraction form
    155,427.71/232,836.47 = 80,596.77/x
  3. Step 3: Cross multiply
    155,427.71x = 232,836.47 × 80,596.77
  4. Step 4: Simplify right side
    155,427.71x = 18,765,866,446.32
  5. Step 5: Solve for x
    x = 18,765,866,446.32/155,427.71
  6. Step 6: Final answer
    x = 120,736.95

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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.