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Finding the Fourth Proportional to 171,692.73, 236,985.35 and 103,698.90

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Solution

The fourth proportional to 171,692.73, 236,985.35 and 103,698.90 is: 143,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,692.73 : 236,985.35 = 103,698.90 : x
  2. Step 2: Convert to fraction form
    171,692.73/236,985.35 = 103,698.90/x
  3. Step 3: Cross multiply
    171,692.73x = 236,985.35 × 103,698.90
  4. Step 4: Simplify right side
    171,692.73x = 24,575,119,592.62
  5. Step 5: Solve for x
    x = 24,575,119,592.62/171,692.73
  6. Step 6: Final answer
    x = 143,134.31

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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.