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Finding the Fourth Proportional to 394,991.72, 592,484.76 and 158,330.96

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Solution

The fourth proportional to 394,991.72, 592,484.76 and 158,330.96 is: 237,495.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,991.72 : 592,484.76 = 158,330.96 : x
  2. Step 2: Convert to fraction form
    394,991.72/592,484.76 = 158,330.96/x
  3. Step 3: Cross multiply
    394,991.72x = 592,484.76 × 158,330.96
  4. Step 4: Simplify right side
    394,991.72x = 93,808,680,836.17
  5. Step 5: Solve for x
    x = 93,808,680,836.17/394,991.72
  6. Step 6: Final answer
    x = 237,495.31

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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.