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Finding the Fourth Proportional to 302,091.83, 453,137.71 and 143,840.51

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Solution

The fourth proportional to 302,091.83, 453,137.71 and 143,840.51 is: 215,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,091.83 : 453,137.71 = 143,840.51 : x
  2. Step 2: Convert to fraction form
    302,091.83/453,137.71 = 143,840.51/x
  3. Step 3: Cross multiply
    302,091.83x = 453,137.71 × 143,840.51
  4. Step 4: Simplify right side
    302,091.83x = 65,179,557,400.54
  5. Step 5: Solve for x
    x = 65,179,557,400.54/302,091.83
  6. Step 6: Final answer
    x = 215,760.75

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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.