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Finding the Fourth Proportional to 215,566.92, 297,491.52 and 120,073.65

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Solution

The fourth proportional to 215,566.92, 297,491.52 and 120,073.65 is: 165,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,566.92 : 297,491.52 = 120,073.65 : x
  2. Step 2: Convert to fraction form
    215,566.92/297,491.52 = 120,073.65/x
  3. Step 3: Cross multiply
    215,566.92x = 297,491.52 × 120,073.65
  4. Step 4: Simplify right side
    215,566.92x = 35,720,892,650.45
  5. Step 5: Solve for x
    x = 35,720,892,650.45/215,566.92
  6. Step 6: Final answer
    x = 165,706.75

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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.