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Finding the Fourth Proportional to 194,476.16, 268,377.08 and 105,052.16

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Solution

The fourth proportional to 194,476.16, 268,377.08 and 105,052.16 is: 144,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,476.16 : 268,377.08 = 105,052.16 : x
  2. Step 2: Convert to fraction form
    194,476.16/268,377.08 = 105,052.16/x
  3. Step 3: Cross multiply
    194,476.16x = 268,377.08 × 105,052.16
  4. Step 4: Simplify right side
    194,476.16x = 28,193,591,948.49
  5. Step 5: Solve for x
    x = 28,193,591,948.49/194,476.16
  6. Step 6: Final answer
    x = 144,971.97

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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.