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Finding the Fourth Proportional to 271,112.16, 374,128.40 and 157,927.60

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Solution

The fourth proportional to 271,112.16, 374,128.40 and 157,927.60 is: 217,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,112.16 : 374,128.40 = 157,927.60 : x
  2. Step 2: Convert to fraction form
    271,112.16/374,128.40 = 157,927.60/x
  3. Step 3: Cross multiply
    271,112.16x = 374,128.40 × 157,927.60
  4. Step 4: Simplify right side
    271,112.16x = 59,085,200,303.84
  5. Step 5: Solve for x
    x = 59,085,200,303.84/271,112.16
  6. Step 6: Final answer
    x = 217,936.37

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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.