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Finding the Fourth Proportional to 292,700.40, 439,198.22 and 115,334.70

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Solution

The fourth proportional to 292,700.40, 439,198.22 and 115,334.70 is: 173,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,700.40 : 439,198.22 = 115,334.70 : x
  2. Step 2: Convert to fraction form
    292,700.40/439,198.22 = 115,334.70/x
  3. Step 3: Cross multiply
    292,700.40x = 439,198.22 × 115,334.70
  4. Step 4: Simplify right side
    292,700.40x = 50,654,794,944.23
  5. Step 5: Solve for x
    x = 50,654,794,944.23/292,700.40
  6. Step 6: Final answer
    x = 173,060.22

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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.