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Finding the Fourth Proportional to 96,612.80, 144,991.20 and 49,841.60

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Solution

The fourth proportional to 96,612.80, 144,991.20 and 49,841.60 is: 74,799.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,612.80 : 144,991.20 = 49,841.60 : x
  2. Step 2: Convert to fraction form
    96,612.80/144,991.20 = 49,841.60/x
  3. Step 3: Cross multiply
    96,612.80x = 144,991.20 × 49,841.60
  4. Step 4: Simplify right side
    96,612.80x = 7,226,593,393.92
  5. Step 5: Solve for x
    x = 7,226,593,393.92/96,612.80
  6. Step 6: Final answer
    x = 74,799.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.