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Finding the Fourth Proportional to 183,987.82, 275,431.65 and 112,685.95

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Solution

The fourth proportional to 183,987.82, 275,431.65 and 112,685.95 is: 168,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,987.82 : 275,431.65 = 112,685.95 : x
  2. Step 2: Convert to fraction form
    183,987.82/275,431.65 = 112,685.95/x
  3. Step 3: Cross multiply
    183,987.82x = 275,431.65 × 112,685.95
  4. Step 4: Simplify right side
    183,987.82x = 31,037,277,140.32
  5. Step 5: Solve for x
    x = 31,037,277,140.32/183,987.82
  6. Step 6: Final answer
    x = 168,692.02

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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.