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Finding the Fourth Proportional to 93,419.52, 140,106.24 and 54,021.12

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Solution

The fourth proportional to 93,419.52, 140,106.24 and 54,021.12 is: 81,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,419.52 : 140,106.24 = 54,021.12 : x
  2. Step 2: Convert to fraction form
    93,419.52/140,106.24 = 54,021.12/x
  3. Step 3: Cross multiply
    93,419.52x = 140,106.24 × 54,021.12
  4. Step 4: Simplify right side
    93,419.52x = 7,568,696,003.79
  5. Step 5: Solve for x
    x = 7,568,696,003.79/93,419.52
  6. Step 6: Final answer
    x = 81,018.36

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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.