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Finding the Fourth Proportional to 80,594.96, 120,300.89 and 74,657.25

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Solution

The fourth proportional to 80,594.96, 120,300.89 and 74,657.25 is: 111,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,594.96 : 120,300.89 = 74,657.25 : x
  2. Step 2: Convert to fraction form
    80,594.96/120,300.89 = 74,657.25/x
  3. Step 3: Cross multiply
    80,594.96x = 120,300.89 × 74,657.25
  4. Step 4: Simplify right side
    80,594.96x = 8,981,333,246.67
  5. Step 5: Solve for x
    x = 8,981,333,246.67/80,594.96
  6. Step 6: Final answer
    x = 111,437.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.