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Finding the Fourth Proportional to 99,262.92, 136,983.74 and 53,940.92

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Solution

The fourth proportional to 99,262.92, 136,983.74 and 53,940.92 is: 74,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,262.92 : 136,983.74 = 53,940.92 : x
  2. Step 2: Convert to fraction form
    99,262.92/136,983.74 = 53,940.92/x
  3. Step 3: Cross multiply
    99,262.92x = 136,983.74 × 53,940.92
  4. Step 4: Simplify right side
    99,262.92x = 7,389,028,960.64
  5. Step 5: Solve for x
    x = 7,389,028,960.64/99,262.92
  6. Step 6: Final answer
    x = 74,438.96

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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.