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Finding the Fourth Proportional to 395,426.85, 593,140.01 and 158,769.42

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Solution

The fourth proportional to 395,426.85, 593,140.01 and 158,769.42 is: 238,154.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,426.85 : 593,140.01 = 158,769.42 : x
  2. Step 2: Convert to fraction form
    395,426.85/593,140.01 = 158,769.42/x
  3. Step 3: Cross multiply
    395,426.85x = 593,140.01 × 158,769.42
  4. Step 4: Simplify right side
    395,426.85x = 94,172,494,572.65
  5. Step 5: Solve for x
    x = 94,172,494,572.65/395,426.85
  6. Step 6: Final answer
    x = 238,154.02

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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.