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Finding the Fourth Proportional to 395,574.48, 593,318.15 and 111,274.05

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Solution

The fourth proportional to 395,574.48, 593,318.15 and 111,274.05 is: 166,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,574.48 : 593,318.15 = 111,274.05 : x
  2. Step 2: Convert to fraction form
    395,574.48/593,318.15 = 111,274.05/x
  3. Step 3: Cross multiply
    395,574.48x = 593,318.15 × 111,274.05
  4. Step 4: Simplify right side
    395,574.48x = 66,020,913,489.01
  5. Step 5: Solve for x
    x = 66,020,913,489.01/395,574.48
  6. Step 6: Final answer
    x = 166,898.82

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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.