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Finding the Fourth Proportional to 193,990.70, 290,998.34 and 60,876.21

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Solution

The fourth proportional to 193,990.70, 290,998.34 and 60,876.21 is: 91,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,990.70 : 290,998.34 = 60,876.21 : x
  2. Step 2: Convert to fraction form
    193,990.70/290,998.34 = 60,876.21/x
  3. Step 3: Cross multiply
    193,990.70x = 290,998.34 × 60,876.21
  4. Step 4: Simplify right side
    193,990.70x = 17,714,875,751.11
  5. Step 5: Solve for x
    x = 17,714,875,751.11/193,990.70
  6. Step 6: Final answer
    x = 91,318.17

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1.5x scale

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.