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Finding the Fourth Proportional to 143,329.80, 214,994.70 and 134,472.45

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Solution

The fourth proportional to 143,329.80, 214,994.70 and 134,472.45 is: 201,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,329.80 : 214,994.70 = 134,472.45 : x
  2. Step 2: Convert to fraction form
    143,329.80/214,994.70 = 134,472.45/x
  3. Step 3: Cross multiply
    143,329.80x = 214,994.70 × 134,472.45
  4. Step 4: Simplify right side
    143,329.80x = 28,910,864,046.02
  5. Step 5: Solve for x
    x = 28,910,864,046.02/143,329.80
  6. Step 6: Final answer
    x = 201,708.68

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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.