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Finding the Fourth Proportional to 215,324.68, 297,145.89 and 119,829.76

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Solution

The fourth proportional to 215,324.68, 297,145.89 and 119,829.76 is: 165,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,324.68 : 297,145.89 = 119,829.76 : x
  2. Step 2: Convert to fraction form
    215,324.68/297,145.89 = 119,829.76/x
  3. Step 3: Cross multiply
    215,324.68x = 297,145.89 × 119,829.76
  4. Step 4: Simplify right side
    215,324.68x = 35,606,920,683.69
  5. Step 5: Solve for x
    x = 35,606,920,683.69/215,324.68
  6. Step 6: Final answer
    x = 165,363.86

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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.