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Finding the Fourth Proportional to 161,798.86, 223,283.46 and 90,183.43

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Solution

The fourth proportional to 161,798.86, 223,283.46 and 90,183.43 is: 124,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,798.86 : 223,283.46 = 90,183.43 : x
  2. Step 2: Convert to fraction form
    161,798.86/223,283.46 = 90,183.43/x
  3. Step 3: Cross multiply
    161,798.86x = 223,283.46 × 90,183.43
  4. Step 4: Simplify right side
    161,798.86x = 20,136,468,285.07
  5. Step 5: Solve for x
    x = 20,136,468,285.07/161,798.86
  6. Step 6: Final answer
    x = 124,453.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.