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Finding the Fourth Proportional to 285,119.80, 393,310.11 and 183,161.30

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Solution

The fourth proportional to 285,119.80, 393,310.11 and 183,161.30 is: 252,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,119.80 : 393,310.11 = 183,161.30 : x
  2. Step 2: Convert to fraction form
    285,119.80/393,310.11 = 183,161.30/x
  3. Step 3: Cross multiply
    285,119.80x = 393,310.11 × 183,161.30
  4. Step 4: Simplify right side
    285,119.80x = 72,039,191,050.74
  5. Step 5: Solve for x
    x = 72,039,191,050.74/285,119.80
  6. Step 6: Final answer
    x = 252,662.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.