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Finding the Fourth Proportional to 124,949.34, 172,515.51 and 92,692.38

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Solution

The fourth proportional to 124,949.34, 172,515.51 and 92,692.38 is: 127,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,949.34 : 172,515.51 = 92,692.38 : x
  2. Step 2: Convert to fraction form
    124,949.34/172,515.51 = 92,692.38/x
  3. Step 3: Cross multiply
    124,949.34x = 172,515.51 × 92,692.38
  4. Step 4: Simplify right side
    124,949.34x = 15,990,873,208.81
  5. Step 5: Solve for x
    x = 15,990,873,208.81/124,949.34
  6. Step 6: Final answer
    x = 127,978.85

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