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Finding the Fourth Proportional to 105,282.75, 157,879.17 and 60,940.11

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Solution

The fourth proportional to 105,282.75, 157,879.17 and 60,940.11 is: 91,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,282.75 : 157,879.17 = 60,940.11 : x
  2. Step 2: Convert to fraction form
    105,282.75/157,879.17 = 60,940.11/x
  3. Step 3: Cross multiply
    105,282.75x = 157,879.17 × 60,940.11
  4. Step 4: Simplify right side
    105,282.75x = 9,621,173,986.51
  5. Step 5: Solve for x
    x = 9,621,173,986.51/105,282.75
  6. Step 6: Final answer
    x = 91,384.14

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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.