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Finding the Fourth Proportional to 98,170.33, 147,136.44 and 44,789.18

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Solution

The fourth proportional to 98,170.33, 147,136.44 and 44,789.18 is: 67,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,170.33 : 147,136.44 = 44,789.18 : x
  2. Step 2: Convert to fraction form
    98,170.33/147,136.44 = 44,789.18/x
  3. Step 3: Cross multiply
    98,170.33x = 147,136.44 × 44,789.18
  4. Step 4: Simplify right side
    98,170.33x = 6,590,120,495.72
  5. Step 5: Solve for x
    x = 6,590,120,495.72/98,170.33
  6. Step 6: Final answer
    x = 67,129.46

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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.