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Finding the Fourth Proportional to 96,609.96, 133,321.74 and 54,168.48

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Solution

The fourth proportional to 96,609.96, 133,321.74 and 54,168.48 is: 74,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,609.96 : 133,321.74 = 54,168.48 : x
  2. Step 2: Convert to fraction form
    96,609.96/133,321.74 = 54,168.48/x
  3. Step 3: Cross multiply
    96,609.96x = 133,321.74 × 54,168.48
  4. Step 4: Simplify right side
    96,609.96x = 7,221,836,006.76
  5. Step 5: Solve for x
    x = 7,221,836,006.76/96,609.96
  6. Step 6: Final answer
    x = 74,752.50

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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.