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Finding the Fourth Proportional to 355,333.33, 532,941.60 and 127,581.80

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Solution

The fourth proportional to 355,333.33, 532,941.60 and 127,581.80 is: 191,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,333.33 : 532,941.60 = 127,581.80 : x
  2. Step 2: Convert to fraction form
    355,333.33/532,941.60 = 127,581.80/x
  3. Step 3: Cross multiply
    355,333.33x = 532,941.60 × 127,581.80
  4. Step 4: Simplify right side
    355,333.33x = 67,993,646,649.02
  5. Step 5: Solve for x
    x = 67,993,646,649.02/355,333.33
  6. Step 6: Final answer
    x = 191,351.73

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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.