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Finding the Fourth Proportional to 368,397, 552,595.50 and 119,079

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Solution

The fourth proportional to 368,397, 552,595.50 and 119,079 is: 178,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,397 : 552,595.50 = 119,079 : x
  2. Step 2: Convert to fraction form
    368,397/552,595.50 = 119,079/x
  3. Step 3: Cross multiply
    368,397x = 552,595.50 × 119,079
  4. Step 4: Simplify right side
    368,397x = 65,802,519,544.50
  5. Step 5: Solve for x
    x = 65,802,519,544.50/368,397
  6. Step 6: Final answer
    x = 178,618.50

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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.