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Finding the Fourth Proportional to 193,339.05, 290,114.28 and 75,015.06

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Solution

The fourth proportional to 193,339.05, 290,114.28 and 75,015.06 is: 112,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,339.05 : 290,114.28 = 75,015.06 : x
  2. Step 2: Convert to fraction form
    193,339.05/290,114.28 = 75,015.06/x
  3. Step 3: Cross multiply
    193,339.05x = 290,114.28 × 75,015.06
  4. Step 4: Simplify right side
    193,339.05x = 21,762,940,121.06
  5. Step 5: Solve for x
    x = 21,762,940,121.06/193,339.05
  6. Step 6: Final answer
    x = 112,563.60

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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.