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Finding the Fourth Proportional to 221,196.74, 331,794.07 and 69,404.93

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Solution

The fourth proportional to 221,196.74, 331,794.07 and 69,404.93 is: 104,107.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,196.74 : 331,794.07 = 69,404.93 : x
  2. Step 2: Convert to fraction form
    221,196.74/331,794.07 = 69,404.93/x
  3. Step 3: Cross multiply
    221,196.74x = 331,794.07 × 69,404.93
  4. Step 4: Simplify right side
    221,196.74x = 23,028,142,543.79
  5. Step 5: Solve for x
    x = 23,028,142,543.79/221,196.74
  6. Step 6: Final answer
    x = 104,107.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.