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Finding the Fourth Proportional to 368,607.30, 552,910.95 and 119,289.30

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Solution

The fourth proportional to 368,607.30, 552,910.95 and 119,289.30 is: 178,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,607.30 : 552,910.95 = 119,289.30 : x
  2. Step 2: Convert to fraction form
    368,607.30/552,910.95 = 119,289.30/x
  3. Step 3: Cross multiply
    368,607.30x = 552,910.95 × 119,289.30
  4. Step 4: Simplify right side
    368,607.30x = 65,956,360,187.84
  5. Step 5: Solve for x
    x = 65,956,360,187.84/368,607.30
  6. Step 6: Final answer
    x = 178,933.95

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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.