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Finding the Fourth Proportional to 238,373.46, 328,861.26 and 153,539.82

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Solution

The fourth proportional to 238,373.46, 328,861.26 and 153,539.82 is: 211,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,373.46 : 328,861.26 = 153,539.82 : x
  2. Step 2: Convert to fraction form
    238,373.46/328,861.26 = 153,539.82/x
  3. Step 3: Cross multiply
    238,373.46x = 328,861.26 × 153,539.82
  4. Step 4: Simplify right side
    238,373.46x = 50,493,298,665.37
  5. Step 5: Solve for x
    x = 50,493,298,665.37/238,373.46
  6. Step 6: Final answer
    x = 211,824.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.