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Finding the Fourth Proportional to 119,144.44, 178,660.05 and 69,238.90

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Solution

The fourth proportional to 119,144.44, 178,660.05 and 69,238.90 is: 103,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,144.44 : 178,660.05 = 69,238.90 : x
  2. Step 2: Convert to fraction form
    119,144.44/178,660.05 = 69,238.90/x
  3. Step 3: Cross multiply
    119,144.44x = 178,660.05 × 69,238.90
  4. Step 4: Simplify right side
    119,144.44x = 12,370,225,335.95
  5. Step 5: Solve for x
    x = 12,370,225,335.95/119,144.44
  6. Step 6: Final answer
    x = 103,825.45

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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.