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Finding the Fourth Proportional to 368,843.63, 552,896.08 and 143,894.58

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Solution

The fourth proportional to 368,843.63, 552,896.08 and 143,894.58 is: 215,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,843.63 : 552,896.08 = 143,894.58 : x
  2. Step 2: Convert to fraction form
    368,843.63/552,896.08 = 143,894.58/x
  3. Step 3: Cross multiply
    368,843.63x = 552,896.08 × 143,894.58
  4. Step 4: Simplify right side
    368,843.63x = 79,558,746,782.15
  5. Step 5: Solve for x
    x = 79,558,746,782.15/368,843.63
  6. Step 6: Final answer
    x = 215,697.77

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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.