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Finding the Fourth Proportional to 443,350.20, 665,111.70 and 177,065.40

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Solution

The fourth proportional to 443,350.20, 665,111.70 and 177,065.40 is: 265,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,350.20 : 665,111.70 = 177,065.40 : x
  2. Step 2: Convert to fraction form
    443,350.20/665,111.70 = 177,065.40/x
  3. Step 3: Cross multiply
    443,350.20x = 665,111.70 × 177,065.40
  4. Step 4: Simplify right side
    443,350.20x = 117,768,269,205.18
  5. Step 5: Solve for x
    x = 117,768,269,205.18/443,350.20
  6. Step 6: Final answer
    x = 265,632.61

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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.