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Finding the Fourth Proportional to 104,905.71, 157,172.00 and 60,440.60

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Solution

The fourth proportional to 104,905.71, 157,172.00 and 60,440.60 is: 90,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.71 : 157,172.00 = 60,440.60 : x
  2. Step 2: Convert to fraction form
    104,905.71/157,172.00 = 60,440.60/x
  3. Step 3: Cross multiply
    104,905.71x = 157,172.00 × 60,440.60
  4. Step 4: Simplify right side
    104,905.71x = 9,499,568,895.14
  5. Step 5: Solve for x
    x = 9,499,568,895.14/104,905.71
  6. Step 6: Final answer
    x = 90,553.40

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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.