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Finding the Fourth Proportional to 98,403.56, 147,601.50 and 28,282.60

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Solution

The fourth proportional to 98,403.56, 147,601.50 and 28,282.60 is: 42,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,403.56 : 147,601.50 = 28,282.60 : x
  2. Step 2: Convert to fraction form
    98,403.56/147,601.50 = 28,282.60/x
  3. Step 3: Cross multiply
    98,403.56x = 147,601.50 × 28,282.60
  4. Step 4: Simplify right side
    98,403.56x = 4,174,554,183.90
  5. Step 5: Solve for x
    x = 4,174,554,183.90/98,403.56
  6. Step 6: Final answer
    x = 42,422.80

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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.