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Finding the Fourth Proportional to 215,586.95, 297,518.96 and 120,093.62

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Solution

The fourth proportional to 215,586.95, 297,518.96 and 120,093.62 is: 165,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,586.95 : 297,518.96 = 120,093.62 : x
  2. Step 2: Convert to fraction form
    215,586.95/297,518.96 = 120,093.62/x
  3. Step 3: Cross multiply
    215,586.95x = 297,518.96 × 120,093.62
  4. Step 4: Simplify right side
    215,586.95x = 35,730,128,324.57
  5. Step 5: Solve for x
    x = 35,730,128,324.57/215,586.95
  6. Step 6: Final answer
    x = 165,734.19

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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.