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Finding the Fourth Proportional to 238,153.56, 328,651.76 and 134,785.88

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Solution

The fourth proportional to 238,153.56, 328,651.76 and 134,785.88 is: 186,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,153.56 : 328,651.76 = 134,785.88 : x
  2. Step 2: Convert to fraction form
    238,153.56/328,651.76 = 134,785.88/x
  3. Step 3: Cross multiply
    238,153.56x = 328,651.76 × 134,785.88
  4. Step 4: Simplify right side
    238,153.56x = 44,297,614,367.96
  5. Step 5: Solve for x
    x = 44,297,614,367.96/238,153.56
  6. Step 6: Final answer
    x = 186,004.42

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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.