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Finding the Fourth Proportional to 368,535.25, 552,801.04 and 143,918.51

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Solution

The fourth proportional to 368,535.25, 552,801.04 and 143,918.51 is: 215,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,535.25 : 552,801.04 = 143,918.51 : x
  2. Step 2: Convert to fraction form
    368,535.25/552,801.04 = 143,918.51/x
  3. Step 3: Cross multiply
    368,535.25x = 552,801.04 × 143,918.51
  4. Step 4: Simplify right side
    368,535.25x = 79,558,298,879.45
  5. Step 5: Solve for x
    x = 79,558,298,879.45/368,535.25
  6. Step 6: Final answer
    x = 215,877.04

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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.