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Finding the Fourth Proportional to 177,861.40, 266,792.10 and 171,640.60

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Solution

The fourth proportional to 177,861.40, 266,792.10 and 171,640.60 is: 257,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,861.40 : 266,792.10 = 171,640.60 : x
  2. Step 2: Convert to fraction form
    177,861.40/266,792.10 = 171,640.60/x
  3. Step 3: Cross multiply
    177,861.40x = 266,792.10 × 171,640.60
  4. Step 4: Simplify right side
    177,861.40x = 45,792,356,119.26
  5. Step 5: Solve for x
    x = 45,792,356,119.26/177,861.40
  6. Step 6: Final answer
    x = 257,460.90

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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.