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Finding the Fourth Proportional to 193,671.56, 290,518.28 and 69,012.56

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Solution

The fourth proportional to 193,671.56, 290,518.28 and 69,012.56 is: 103,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,671.56 : 290,518.28 = 69,012.56 : x
  2. Step 2: Convert to fraction form
    193,671.56/290,518.28 = 69,012.56/x
  3. Step 3: Cross multiply
    193,671.56x = 290,518.28 × 69,012.56
  4. Step 4: Simplify right side
    193,671.56x = 20,049,410,869.63
  5. Step 5: Solve for x
    x = 20,049,410,869.63/193,671.56
  6. Step 6: Final answer
    x = 103,522.74

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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.