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Finding the Fourth Proportional to 245,234.20, 367,851.30 and 126,941.80

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Solution

The fourth proportional to 245,234.20, 367,851.30 and 126,941.80 is: 190,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,234.20 : 367,851.30 = 126,941.80 : x
  2. Step 2: Convert to fraction form
    245,234.20/367,851.30 = 126,941.80/x
  3. Step 3: Cross multiply
    245,234.20x = 367,851.30 × 126,941.80
  4. Step 4: Simplify right side
    245,234.20x = 46,695,706,154.34
  5. Step 5: Solve for x
    x = 46,695,706,154.34/245,234.20
  6. Step 6: Final answer
    x = 190,412.70

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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.