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Finding the Fourth Proportional to 93,342.80, 139,976.76 and 34,164.56

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Solution

The fourth proportional to 93,342.80, 139,976.76 and 34,164.56 is: 51,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,342.80 : 139,976.76 = 34,164.56 : x
  2. Step 2: Convert to fraction form
    93,342.80/139,976.76 = 34,164.56/x
  3. Step 3: Cross multiply
    93,342.80x = 139,976.76 × 34,164.56
  4. Step 4: Simplify right side
    93,342.80x = 4,782,244,415.63
  5. Step 5: Solve for x
    x = 4,782,244,415.63/93,342.80
  6. Step 6: Final answer
    x = 51,233.14

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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.