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Finding the Fourth Proportional to 189,692.67, 261,775.35 and 104,809.13

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Solution

The fourth proportional to 189,692.67, 261,775.35 and 104,809.13 is: 144,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,692.67 : 261,775.35 = 104,809.13 : x
  2. Step 2: Convert to fraction form
    189,692.67/261,775.35 = 104,809.13/x
  3. Step 3: Cross multiply
    189,692.67x = 261,775.35 × 104,809.13
  4. Step 4: Simplify right side
    189,692.67x = 27,436,445,380.07
  5. Step 5: Solve for x
    x = 27,436,445,380.07/189,692.67
  6. Step 6: Final answer
    x = 144,636.30

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1.5x scale

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.