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Finding the Fourth Proportional to 215,164.15, 296,922.31 and 119,668.79

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Solution

The fourth proportional to 215,164.15, 296,922.31 and 119,668.79 is: 165,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,164.15 : 296,922.31 = 119,668.79 : x
  2. Step 2: Convert to fraction form
    215,164.15/296,922.31 = 119,668.79/x
  3. Step 3: Cross multiply
    215,164.15x = 296,922.31 × 119,668.79
  4. Step 4: Simplify right side
    215,164.15x = 35,532,334,004.84
  5. Step 5: Solve for x
    x = 35,532,334,004.84/215,164.15
  6. Step 6: Final answer
    x = 165,140.59

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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.