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Finding the Fourth Proportional to 394,769.60, 592,148.94 and 95,247.68

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Solution

The fourth proportional to 394,769.60, 592,148.94 and 95,247.68 is: 142,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,769.60 : 592,148.94 = 95,247.68 : x
  2. Step 2: Convert to fraction form
    394,769.60/592,148.94 = 95,247.68/x
  3. Step 3: Cross multiply
    394,769.60x = 592,148.94 × 95,247.68
  4. Step 4: Simplify right side
    394,769.60x = 56,400,812,749.46
  5. Step 5: Solve for x
    x = 56,400,812,749.46/394,769.60
  6. Step 6: Final answer
    x = 142,870.20

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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.