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Finding the Fourth Proportional to 355,021.77, 532,221.62 and 133,561.29

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Solution

The fourth proportional to 355,021.77, 532,221.62 and 133,561.29 is: 200,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,021.77 : 532,221.62 = 133,561.29 : x
  2. Step 2: Convert to fraction form
    355,021.77/532,221.62 = 133,561.29/x
  3. Step 3: Cross multiply
    355,021.77x = 532,221.62 × 133,561.29
  4. Step 4: Simplify right side
    355,021.77x = 71,084,205,465.28
  5. Step 5: Solve for x
    x = 71,084,205,465.28/355,021.77
  6. Step 6: Final answer
    x = 200,224.92

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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.