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Finding the Fourth Proportional to 395,427.35, 593,140.75 and 158,769.92

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Solution

The fourth proportional to 395,427.35, 593,140.75 and 158,769.92 is: 238,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,427.35 : 593,140.75 = 158,769.92 : x
  2. Step 2: Convert to fraction form
    395,427.35/593,140.75 = 158,769.92/x
  3. Step 3: Cross multiply
    395,427.35x = 593,140.75 × 158,769.92
  4. Step 4: Simplify right side
    395,427.35x = 94,172,909,426.24
  5. Step 5: Solve for x
    x = 94,172,909,426.24/395,427.35
  6. Step 6: Final answer
    x = 238,154.77

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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.