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Finding the Fourth Proportional to 245,219.70, 367,829.55 and 126,927.30

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Solution

The fourth proportional to 245,219.70, 367,829.55 and 126,927.30 is: 190,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,219.70 : 367,829.55 = 126,927.30 : x
  2. Step 2: Convert to fraction form
    245,219.70/367,829.55 = 126,927.30/x
  3. Step 3: Cross multiply
    245,219.70x = 367,829.55 × 126,927.30
  4. Step 4: Simplify right side
    245,219.70x = 46,687,611,641.72
  5. Step 5: Solve for x
    x = 46,687,611,641.72/245,219.70
  6. Step 6: Final answer
    x = 190,390.95

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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.