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Finding the Fourth Proportional to 189,692.58, 261,772.65 and 104,813.22

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Solution

The fourth proportional to 189,692.58, 261,772.65 and 104,813.22 is: 144,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,692.58 : 261,772.65 = 104,813.22 : x
  2. Step 2: Convert to fraction form
    189,692.58/261,772.65 = 104,813.22/x
  3. Step 3: Cross multiply
    189,692.58x = 261,772.65 × 104,813.22
  4. Step 4: Simplify right side
    189,692.58x = 27,437,234,354.43
  5. Step 5: Solve for x
    x = 27,437,234,354.43/189,692.58
  6. Step 6: Final answer
    x = 144,640.52

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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.