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Finding the Fourth Proportional to 177,692.60, 266,441.70 and 72,392.60

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Solution

The fourth proportional to 177,692.60, 266,441.70 and 72,392.60 is: 108,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,692.60 : 266,441.70 = 72,392.60 : x
  2. Step 2: Convert to fraction form
    177,692.60/266,441.70 = 72,392.60/x
  3. Step 3: Cross multiply
    177,692.60x = 266,441.70 × 72,392.60
  4. Step 4: Simplify right side
    177,692.60x = 19,288,407,411.42
  5. Step 5: Solve for x
    x = 19,288,407,411.42/177,692.60
  6. Step 6: Final answer
    x = 108,549.30

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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.