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Finding the Fourth Proportional to 119,236, 178,881.64 and 34,992.72

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Solution

The fourth proportional to 119,236, 178,881.64 and 34,992.72 is: 52,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,236 : 178,881.64 = 34,992.72 : x
  2. Step 2: Convert to fraction form
    119,236/178,881.64 = 34,992.72/x
  3. Step 3: Cross multiply
    119,236x = 178,881.64 × 34,992.72
  4. Step 4: Simplify right side
    119,236x = 6,259,555,141.66
  5. Step 5: Solve for x
    x = 6,259,555,141.66/119,236
  6. Step 6: Final answer
    x = 52,497.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.