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Finding the Fourth Proportional to 353,094.45, 487,279.95 and 191,960.52

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Solution

The fourth proportional to 353,094.45, 487,279.95 and 191,960.52 is: 264,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,094.45 : 487,279.95 = 191,960.52 : x
  2. Step 2: Convert to fraction form
    353,094.45/487,279.95 = 191,960.52/x
  3. Step 3: Cross multiply
    353,094.45x = 487,279.95 × 191,960.52
  4. Step 4: Simplify right side
    353,094.45x = 93,538,512,587.57
  5. Step 5: Solve for x
    x = 93,538,512,587.57/353,094.45
  6. Step 6: Final answer
    x = 264,910.74

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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.