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Finding the Fourth Proportional to 93,838.40, 140,498.40 and 73,102.40

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Solution

The fourth proportional to 93,838.40, 140,498.40 and 73,102.40 is: 109,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,838.40 : 140,498.40 = 73,102.40 : x
  2. Step 2: Convert to fraction form
    93,838.40/140,498.40 = 73,102.40/x
  3. Step 3: Cross multiply
    93,838.40x = 140,498.40 × 73,102.40
  4. Step 4: Simplify right side
    93,838.40x = 10,270,770,236.16
  5. Step 5: Solve for x
    x = 10,270,770,236.16/93,838.40
  6. Step 6: Final answer
    x = 109,451.68

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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.