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Finding the Fourth Proportional to 98,324.20, 147,563.10 and 45,740.20

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Solution

The fourth proportional to 98,324.20, 147,563.10 and 45,740.20 is: 68,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,324.20 : 147,563.10 = 45,740.20 : x
  2. Step 2: Convert to fraction form
    98,324.20/147,563.10 = 45,740.20/x
  3. Step 3: Cross multiply
    98,324.20x = 147,563.10 × 45,740.20
  4. Step 4: Simplify right side
    98,324.20x = 6,749,565,706.62
  5. Step 5: Solve for x
    x = 6,749,565,706.62/98,324.20
  6. Step 6: Final answer
    x = 68,646.03

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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.