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Finding the Fourth Proportional to 104,632.62, 144,442.61 and 66,928.74

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Solution

The fourth proportional to 104,632.62, 144,442.61 and 66,928.74 is: 92,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,632.62 : 144,442.61 = 66,928.74 : x
  2. Step 2: Convert to fraction form
    104,632.62/144,442.61 = 66,928.74/x
  3. Step 3: Cross multiply
    104,632.62x = 144,442.61 × 66,928.74
  4. Step 4: Simplify right side
    104,632.62x = 9,667,361,889.61
  5. Step 5: Solve for x
    x = 9,667,361,889.61/104,632.62
  6. Step 6: Final answer
    x = 92,393.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.