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Finding the Fourth Proportional to 119,953.62, 178,960.55 and 107,996.94

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Solution

The fourth proportional to 119,953.62, 178,960.55 and 107,996.94 is: 161,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,953.62 : 178,960.55 = 107,996.94 : x
  2. Step 2: Convert to fraction form
    119,953.62/178,960.55 = 107,996.94/x
  3. Step 3: Cross multiply
    119,953.62x = 178,960.55 × 107,996.94
  4. Step 4: Simplify right side
    119,953.62x = 19,327,191,240.73
  5. Step 5: Solve for x
    x = 19,327,191,240.73/119,953.62
  6. Step 6: Final answer
    x = 161,122.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.