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Finding the Fourth Proportional to 197,329.70, 295,994.55 and 86,521.70

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Solution

The fourth proportional to 197,329.70, 295,994.55 and 86,521.70 is: 129,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,329.70 : 295,994.55 = 86,521.70 : x
  2. Step 2: Convert to fraction form
    197,329.70/295,994.55 = 86,521.70/x
  3. Step 3: Cross multiply
    197,329.70x = 295,994.55 × 86,521.70
  4. Step 4: Simplify right side
    197,329.70x = 25,609,951,656.74
  5. Step 5: Solve for x
    x = 25,609,951,656.74/197,329.70
  6. Step 6: Final answer
    x = 129,782.55

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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.