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Finding the Fourth Proportional to 193,560.40, 290,686.20 and 141,029.20

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Solution

The fourth proportional to 193,560.40, 290,686.20 and 141,029.20 is: 211,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,560.40 : 290,686.20 = 141,029.20 : x
  2. Step 2: Convert to fraction form
    193,560.40/290,686.20 = 141,029.20/x
  3. Step 3: Cross multiply
    193,560.40x = 290,686.20 × 141,029.20
  4. Step 4: Simplify right side
    193,560.40x = 40,995,242,237.04
  5. Step 5: Solve for x
    x = 40,995,242,237.04/193,560.40
  6. Step 6: Final answer
    x = 211,795.61

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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.