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Finding the Fourth Proportional to 177,751.80, 266,627.70 and 130,512.60

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Solution

The fourth proportional to 177,751.80, 266,627.70 and 130,512.60 is: 195,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,751.80 : 266,627.70 = 130,512.60 : x
  2. Step 2: Convert to fraction form
    177,751.80/266,627.70 = 130,512.60/x
  3. Step 3: Cross multiply
    177,751.80x = 266,627.70 × 130,512.60
  4. Step 4: Simplify right side
    177,751.80x = 34,798,274,359.02
  5. Step 5: Solve for x
    x = 34,798,274,359.02/177,751.80
  6. Step 6: Final answer
    x = 195,768.90

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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.