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Finding the Fourth Proportional to 288,944.94, 398,722.38 and 161,595.93

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Solution

The fourth proportional to 288,944.94, 398,722.38 and 161,595.93 is: 222,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,944.94 : 398,722.38 = 161,595.93 : x
  2. Step 2: Convert to fraction form
    288,944.94/398,722.38 = 161,595.93/x
  3. Step 3: Cross multiply
    288,944.94x = 398,722.38 × 161,595.93
  4. Step 4: Simplify right side
    288,944.94x = 64,431,913,807.91
  5. Step 5: Solve for x
    x = 64,431,913,807.91/288,944.94
  6. Step 6: Final answer
    x = 222,990.28

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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.