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Finding the Fourth Proportional to 98,846.76, 148,247.84 and 45,487.50

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Solution

The fourth proportional to 98,846.76, 148,247.84 and 45,487.50 is: 68,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,846.76 : 148,247.84 = 45,487.50 : x
  2. Step 2: Convert to fraction form
    98,846.76/148,247.84 = 45,487.50/x
  3. Step 3: Cross multiply
    98,846.76x = 148,247.84 × 45,487.50
  4. Step 4: Simplify right side
    98,846.76x = 6,743,423,622
  5. Step 5: Solve for x
    x = 6,743,423,622/98,846.76
  6. Step 6: Final answer
    x = 68,220.99

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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.