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Finding the Fourth Proportional to 194,898.66, 268,960.15 and 105,474.66

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Solution

The fourth proportional to 194,898.66, 268,960.15 and 105,474.66 is: 145,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,898.66 : 268,960.15 = 105,474.66 : x
  2. Step 2: Convert to fraction form
    194,898.66/268,960.15 = 105,474.66/x
  3. Step 3: Cross multiply
    194,898.66x = 268,960.15 × 105,474.66
  4. Step 4: Simplify right side
    194,898.66x = 28,368,478,904.75
  5. Step 5: Solve for x
    x = 28,368,478,904.75/194,898.66
  6. Step 6: Final answer
    x = 145,555.03

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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.