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Finding the Fourth Proportional to 98,545.44, 147,821.22 and 38,571.60

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Solution

The fourth proportional to 98,545.44, 147,821.22 and 38,571.60 is: 57,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,545.44 : 147,821.22 = 38,571.60 : x
  2. Step 2: Convert to fraction form
    98,545.44/147,821.22 = 38,571.60/x
  3. Step 3: Cross multiply
    98,545.44x = 147,821.22 × 38,571.60
  4. Step 4: Simplify right side
    98,545.44x = 5,701,700,969.35
  5. Step 5: Solve for x
    x = 5,701,700,969.35/98,545.44
  6. Step 6: Final answer
    x = 57,858.60

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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.