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Finding the Fourth Proportional to 102,665.10, 153,850.22 and 60,445.48

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Solution

The fourth proportional to 102,665.10, 153,850.22 and 60,445.48 is: 90,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.10 : 153,850.22 = 60,445.48 : x
  2. Step 2: Convert to fraction form
    102,665.10/153,850.22 = 60,445.48/x
  3. Step 3: Cross multiply
    102,665.10x = 153,850.22 × 60,445.48
  4. Step 4: Simplify right side
    102,665.10x = 9,299,550,396.01
  5. Step 5: Solve for x
    x = 9,299,550,396.01/102,665.10
  6. Step 6: Final answer
    x = 90,581.42

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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.