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Finding the Fourth Proportional to 395,426.10, 593,138.88 and 158,768.67

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Solution

The fourth proportional to 395,426.10, 593,138.88 and 158,768.67 is: 238,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,426.10 : 593,138.88 = 158,768.67 : x
  2. Step 2: Convert to fraction form
    395,426.10/593,138.88 = 158,768.67/x
  3. Step 3: Cross multiply
    395,426.10x = 593,138.88 × 158,768.67
  4. Step 4: Simplify right side
    395,426.10x = 94,171,871,102.89
  5. Step 5: Solve for x
    x = 94,171,871,102.89/395,426.10
  6. Step 6: Final answer
    x = 238,152.90

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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.