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Finding the Fourth Proportional to 194,472.79, 268,372.45 and 105,048.79

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Solution

The fourth proportional to 194,472.79, 268,372.45 and 105,048.79 is: 144,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,472.79 : 268,372.45 = 105,048.79 : x
  2. Step 2: Convert to fraction form
    194,472.79/268,372.45 = 105,048.79/x
  3. Step 3: Cross multiply
    194,472.79x = 268,372.45 × 105,048.79
  4. Step 4: Simplify right side
    194,472.79x = 28,192,199,799.97
  5. Step 5: Solve for x
    x = 28,192,199,799.97/194,472.79
  6. Step 6: Final answer
    x = 144,967.33

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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.