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Finding the Fourth Proportional to 190,506.61, 285,559.85 and 64,102.97

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Solution

The fourth proportional to 190,506.61, 285,559.85 and 64,102.97 is: 96,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,506.61 : 285,559.85 = 64,102.97 : x
  2. Step 2: Convert to fraction form
    190,506.61/285,559.85 = 64,102.97/x
  3. Step 3: Cross multiply
    190,506.61x = 285,559.85 × 64,102.97
  4. Step 4: Simplify right side
    190,506.61x = 18,305,234,497.75
  5. Step 5: Solve for x
    x = 18,305,234,497.75/190,506.61
  6. Step 6: Final answer
    x = 96,087.14

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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.