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Finding the Fourth Proportional to 96,640.78, 133,363.92 and 54,199.48

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Solution

The fourth proportional to 96,640.78, 133,363.92 and 54,199.48 is: 74,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,640.78 : 133,363.92 = 54,199.48 : x
  2. Step 2: Convert to fraction form
    96,640.78/133,363.92 = 54,199.48/x
  3. Step 3: Cross multiply
    96,640.78x = 133,363.92 × 54,199.48
  4. Step 4: Simplify right side
    96,640.78x = 7,228,255,114.76
  5. Step 5: Solve for x
    x = 7,228,255,114.76/96,640.78
  6. Step 6: Final answer
    x = 74,795.08

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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.