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Finding the Fourth Proportional to 193,990.55, 290,998.13 and 60,876.06

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Solution

The fourth proportional to 193,990.55, 290,998.13 and 60,876.06 is: 91,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,990.55 : 290,998.13 = 60,876.06 : x
  2. Step 2: Convert to fraction form
    193,990.55/290,998.13 = 60,876.06/x
  3. Step 3: Cross multiply
    193,990.55x = 290,998.13 × 60,876.06
  4. Step 4: Simplify right side
    193,990.55x = 17,714,819,621.77
  5. Step 5: Solve for x
    x = 17,714,819,621.77/193,990.55
  6. Step 6: Final answer
    x = 91,317.95

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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.