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Finding the Fourth Proportional to 368,396.50, 552,594.75 and 119,078.50

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Solution

The fourth proportional to 368,396.50, 552,594.75 and 119,078.50 is: 178,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,396.50 : 552,594.75 = 119,078.50 : x
  2. Step 2: Convert to fraction form
    368,396.50/552,594.75 = 119,078.50/x
  3. Step 3: Cross multiply
    368,396.50x = 552,594.75 × 119,078.50
  4. Step 4: Simplify right side
    368,396.50x = 65,802,153,937.88
  5. Step 5: Solve for x
    x = 65,802,153,937.88/368,396.50
  6. Step 6: Final answer
    x = 178,617.75

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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.