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Finding the Fourth Proportional to 194,635.60, 268,597.20 and 105,211.60

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Solution

The fourth proportional to 194,635.60, 268,597.20 and 105,211.60 is: 145,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,635.60 : 268,597.20 = 105,211.60 : x
  2. Step 2: Convert to fraction form
    194,635.60/268,597.20 = 105,211.60/x
  3. Step 3: Cross multiply
    194,635.60x = 268,597.20 × 105,211.60
  4. Step 4: Simplify right side
    194,635.60x = 28,259,541,167.52
  5. Step 5: Solve for x
    x = 28,259,541,167.52/194,635.60
  6. Step 6: Final answer
    x = 145,192.05

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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.