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Finding the Fourth Proportional to 238,375.44, 328,959.96 and 130,946.64

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Solution

The fourth proportional to 238,375.44, 328,959.96 and 130,946.64 is: 180,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,375.44 : 328,959.96 = 130,946.64 : x
  2. Step 2: Convert to fraction form
    238,375.44/328,959.96 = 130,946.64/x
  3. Step 3: Cross multiply
    238,375.44x = 328,959.96 × 130,946.64
  4. Step 4: Simplify right side
    238,375.44x = 43,076,201,456.53
  5. Step 5: Solve for x
    x = 43,076,201,456.53/238,375.44
  6. Step 6: Final answer
    x = 180,707.38

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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.