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Finding the Fourth Proportional to 368,214.94, 552,329.28 and 115,489.84

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Solution

The fourth proportional to 368,214.94, 552,329.28 and 115,489.84 is: 173,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,214.94 : 552,329.28 = 115,489.84 : x
  2. Step 2: Convert to fraction form
    368,214.94/552,329.28 = 115,489.84/x
  3. Step 3: Cross multiply
    368,214.94x = 552,329.28 × 115,489.84
  4. Step 4: Simplify right side
    368,214.94x = 63,788,420,174.52
  5. Step 5: Solve for x
    x = 63,788,420,174.52/368,214.94
  6. Step 6: Final answer
    x = 173,236.91

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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.