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Finding the Fourth Proportional to 193,251.60, 289,927.80 and 74,926.80

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Solution

The fourth proportional to 193,251.60, 289,927.80 and 74,926.80 is: 112,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,251.60 : 289,927.80 = 74,926.80 : x
  2. Step 2: Convert to fraction form
    193,251.60/289,927.80 = 74,926.80/x
  3. Step 3: Cross multiply
    193,251.60x = 289,927.80 × 74,926.80
  4. Step 4: Simplify right side
    193,251.60x = 21,723,362,285.04
  5. Step 5: Solve for x
    x = 21,723,362,285.04/193,251.60
  6. Step 6: Final answer
    x = 112,409.74

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1.5x scale

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.