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Finding the Fourth Proportional to 99,222.92, 136,929.78 and 54,513.80

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Solution

The fourth proportional to 99,222.92, 136,929.78 and 54,513.80 is: 75,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,222.92 : 136,929.78 = 54,513.80 : x
  2. Step 2: Convert to fraction form
    99,222.92/136,929.78 = 54,513.80/x
  3. Step 3: Cross multiply
    99,222.92x = 136,929.78 × 54,513.80
  4. Step 4: Simplify right side
    99,222.92x = 7,464,562,640.96
  5. Step 5: Solve for x
    x = 7,464,562,640.96/99,222.92
  6. Step 6: Final answer
    x = 75,230.23

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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.