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Finding the Fourth Proportional to 220,783.80, 331,218.90 and 94,423.80

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Solution

The fourth proportional to 220,783.80, 331,218.90 and 94,423.80 is: 141,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,783.80 : 331,218.90 = 94,423.80 : x
  2. Step 2: Convert to fraction form
    220,783.80/331,218.90 = 94,423.80/x
  3. Step 3: Cross multiply
    220,783.80x = 331,218.90 × 94,423.80
  4. Step 4: Simplify right side
    220,783.80x = 31,274,947,169.82
  5. Step 5: Solve for x
    x = 31,274,947,169.82/220,783.80
  6. Step 6: Final answer
    x = 141,654.18

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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.