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Finding the Fourth Proportional to 177,401.80, 266,102.70 and 127,376.20

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Solution

The fourth proportional to 177,401.80, 266,102.70 and 127,376.20 is: 191,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,401.80 : 266,102.70 = 127,376.20 : x
  2. Step 2: Convert to fraction form
    177,401.80/266,102.70 = 127,376.20/x
  3. Step 3: Cross multiply
    177,401.80x = 266,102.70 × 127,376.20
  4. Step 4: Simplify right side
    177,401.80x = 33,895,150,735.74
  5. Step 5: Solve for x
    x = 33,895,150,735.74/177,401.80
  6. Step 6: Final answer
    x = 191,064.30

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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.