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Finding the Fourth Proportional to 244,939.70, 366,955.95 and 139,445.30

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Solution

The fourth proportional to 244,939.70, 366,955.95 and 139,445.30 is: 208,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,939.70 : 366,955.95 = 139,445.30 : x
  2. Step 2: Convert to fraction form
    244,939.70/366,955.95 = 139,445.30/x
  3. Step 3: Cross multiply
    244,939.70x = 366,955.95 × 139,445.30
  4. Step 4: Simplify right side
    244,939.70x = 51,170,282,534.54
  5. Step 5: Solve for x
    x = 51,170,282,534.54/244,939.70
  6. Step 6: Final answer
    x = 208,909.71

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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.