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Finding the Fourth Proportional to 96,616.60, 144,924.90 and 81,064.60

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Solution

The fourth proportional to 96,616.60, 144,924.90 and 81,064.60 is: 121,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,616.60 : 144,924.90 = 81,064.60 : x
  2. Step 2: Convert to fraction form
    96,616.60/144,924.90 = 81,064.60/x
  3. Step 3: Cross multiply
    96,616.60x = 144,924.90 × 81,064.60
  4. Step 4: Simplify right side
    96,616.60x = 11,748,279,048.54
  5. Step 5: Solve for x
    x = 11,748,279,048.54/96,616.60
  6. Step 6: Final answer
    x = 121,596.90

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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.