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Finding the Fourth Proportional to 286,512.70, 395,398.19 and 171,810.01

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Solution

The fourth proportional to 286,512.70, 395,398.19 and 171,810.01 is: 237,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,512.70 : 395,398.19 = 171,810.01 : x
  2. Step 2: Convert to fraction form
    286,512.70/395,398.19 = 171,810.01/x
  3. Step 3: Cross multiply
    286,512.70x = 395,398.19 × 171,810.01
  4. Step 4: Simplify right side
    286,512.70x = 67,933,368,320.88
  5. Step 5: Solve for x
    x = 67,933,368,320.88/286,512.70
  6. Step 6: Final answer
    x = 237,104.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.