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Finding the Fourth Proportional to 221,429.69, 332,197.26 and 71,670.01

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Solution

The fourth proportional to 221,429.69, 332,197.26 and 71,670.01 is: 107,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429.69 : 332,197.26 = 71,670.01 : x
  2. Step 2: Convert to fraction form
    221,429.69/332,197.26 = 71,670.01/x
  3. Step 3: Cross multiply
    221,429.69x = 332,197.26 × 71,670.01
  4. Step 4: Simplify right side
    221,429.69x = 23,808,580,115.68
  5. Step 5: Solve for x
    x = 23,808,580,115.68/221,429.69
  6. Step 6: Final answer
    x = 107,522.08

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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.