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Finding the Fourth Proportional to 203,334.84, 280,602.72 and 112,692.33

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Solution

The fourth proportional to 203,334.84, 280,602.72 and 112,692.33 is: 155,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,334.84 : 280,602.72 = 112,692.33 : x
  2. Step 2: Convert to fraction form
    203,334.84/280,602.72 = 112,692.33/x
  3. Step 3: Cross multiply
    203,334.84x = 280,602.72 × 112,692.33
  4. Step 4: Simplify right side
    203,334.84x = 31,621,774,321.14
  5. Step 5: Solve for x
    x = 31,621,774,321.14/203,334.84
  6. Step 6: Final answer
    x = 155,515.77

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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.