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Finding the Fourth Proportional to 73,166.84, 100,976.46 and 61,209.08

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Solution

The fourth proportional to 73,166.84, 100,976.46 and 61,209.08 is: 84,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,166.84 : 100,976.46 = 61,209.08 : x
  2. Step 2: Convert to fraction form
    73,166.84/100,976.46 = 61,209.08/x
  3. Step 3: Cross multiply
    73,166.84x = 100,976.46 × 61,209.08
  4. Step 4: Simplify right side
    73,166.84x = 6,180,676,218.26
  5. Step 5: Solve for x
    x = 6,180,676,218.26/73,166.84
  6. Step 6: Final answer
    x = 84,473.73

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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.