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Finding the Fourth Proportional to 98,563.58, 147,846.46 and 28,443.50

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Solution

The fourth proportional to 98,563.58, 147,846.46 and 28,443.50 is: 42,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,563.58 : 147,846.46 = 28,443.50 : x
  2. Step 2: Convert to fraction form
    98,563.58/147,846.46 = 28,443.50/x
  3. Step 3: Cross multiply
    98,563.58x = 147,846.46 × 28,443.50
  4. Step 4: Simplify right side
    98,563.58x = 4,205,270,785.01
  5. Step 5: Solve for x
    x = 4,205,270,785.01/98,563.58
  6. Step 6: Final answer
    x = 42,665.56

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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.