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Finding the Fourth Proportional to 238,818.76, 329,532.32 and 136,824.56

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Solution

The fourth proportional to 238,818.76, 329,532.32 and 136,824.56 is: 188,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,818.76 : 329,532.32 = 136,824.56 : x
  2. Step 2: Convert to fraction form
    238,818.76/329,532.32 = 136,824.56/x
  3. Step 3: Cross multiply
    238,818.76x = 329,532.32 × 136,824.56
  4. Step 4: Simplify right side
    238,818.76x = 45,088,114,689.78
  5. Step 5: Solve for x
    x = 45,088,114,689.78/238,818.76
  6. Step 6: Final answer
    x = 188,796.37

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1.5x scale

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.