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Finding the Fourth Proportional to 96,809.40, 133,629.66 and 61,059

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Solution

The fourth proportional to 96,809.40, 133,629.66 and 61,059 is: 84,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,809.40 : 133,629.66 = 61,059 : x
  2. Step 2: Convert to fraction form
    96,809.40/133,629.66 = 61,059/x
  3. Step 3: Cross multiply
    96,809.40x = 133,629.66 × 61,059
  4. Step 4: Simplify right side
    96,809.40x = 8,159,293,409.94
  5. Step 5: Solve for x
    x = 8,159,293,409.94/96,809.40
  6. Step 6: Final answer
    x = 84,282.04

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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.