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Finding the Fourth Proportional to 194,861.59, 268,909.76 and 105,437.59

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Solution

The fourth proportional to 194,861.59, 268,909.76 and 105,437.59 is: 145,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,861.59 : 268,909.76 = 105,437.59 : x
  2. Step 2: Convert to fraction form
    194,861.59/268,909.76 = 105,437.59/x
  3. Step 3: Cross multiply
    194,861.59x = 268,909.76 × 105,437.59
  4. Step 4: Simplify right side
    194,861.59x = 28,353,197,021.88
  5. Step 5: Solve for x
    x = 28,353,197,021.88/194,861.59
  6. Step 6: Final answer
    x = 145,504.29

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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.