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Finding the Fourth Proportional to 268,770.60, 402,983.10 and 111,061.80

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Solution

The fourth proportional to 268,770.60, 402,983.10 and 111,061.80 is: 166,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,770.60 : 402,983.10 = 111,061.80 : x
  2. Step 2: Convert to fraction form
    268,770.60/402,983.10 = 111,061.80/x
  3. Step 3: Cross multiply
    268,770.60x = 402,983.10 × 111,061.80
  4. Step 4: Simplify right side
    268,770.60x = 44,756,028,455.58
  5. Step 5: Solve for x
    x = 44,756,028,455.58/268,770.60
  6. Step 6: Final answer
    x = 166,521.30

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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.