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Finding the Fourth Proportional to 238,503.87, 329,134.26 and 136,528.77

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Solution

The fourth proportional to 238,503.87, 329,134.26 and 136,528.77 is: 188,409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,503.87 : 329,134.26 = 136,528.77 : x
  2. Step 2: Convert to fraction form
    238,503.87/329,134.26 = 136,528.77/x
  3. Step 3: Cross multiply
    238,503.87x = 329,134.26 × 136,528.77
  4. Step 4: Simplify right side
    238,503.87x = 44,936,295,682.66
  5. Step 5: Solve for x
    x = 44,936,295,682.66/238,503.87
  6. Step 6: Final answer
    x = 188,409.08

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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.