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Finding the Fourth Proportional to 135,193.92, 186,568.56 and 73,940.40

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Solution

The fourth proportional to 135,193.92, 186,568.56 and 73,940.40 is: 102,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,193.92 : 186,568.56 = 73,940.40 : x
  2. Step 2: Convert to fraction form
    135,193.92/186,568.56 = 73,940.40/x
  3. Step 3: Cross multiply
    135,193.92x = 186,568.56 × 73,940.40
  4. Step 4: Simplify right side
    135,193.92x = 13,794,953,953.82
  5. Step 5: Solve for x
    x = 13,794,953,953.82/135,193.92
  6. Step 6: Final answer
    x = 102,038.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.