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Finding the Fourth Proportional to 368,012.67, 552,018.96 and 118,694.67

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Solution

The fourth proportional to 368,012.67, 552,018.96 and 118,694.67 is: 178,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,012.67 : 552,018.96 = 118,694.67 : x
  2. Step 2: Convert to fraction form
    368,012.67/552,018.96 = 118,694.67/x
  3. Step 3: Cross multiply
    368,012.67x = 552,018.96 × 118,694.67
  4. Step 4: Simplify right side
    368,012.67x = 65,521,708,290.94
  5. Step 5: Solve for x
    x = 65,521,708,290.94/368,012.67
  6. Step 6: Final answer
    x = 178,041.99

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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.