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Finding the Fourth Proportional to 131,692.60, 197,441.70 and 56,751.40

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Solution

The fourth proportional to 131,692.60, 197,441.70 and 56,751.40 is: 85,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,692.60 : 197,441.70 = 56,751.40 : x
  2. Step 2: Convert to fraction form
    131,692.60/197,441.70 = 56,751.40/x
  3. Step 3: Cross multiply
    131,692.60x = 197,441.70 × 56,751.40
  4. Step 4: Simplify right side
    131,692.60x = 11,205,092,893.38
  5. Step 5: Solve for x
    x = 11,205,092,893.38/131,692.60
  6. Step 6: Final answer
    x = 85,085.21

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1.5x scale

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.