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Finding the Fourth Proportional to 201,112.12, 277,629.06 and 116,212.60

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Solution

The fourth proportional to 201,112.12, 277,629.06 and 116,212.60 is: 160,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,112.12 : 277,629.06 = 116,212.60 : x
  2. Step 2: Convert to fraction form
    201,112.12/277,629.06 = 116,212.60/x
  3. Step 3: Cross multiply
    201,112.12x = 277,629.06 × 116,212.60
  4. Step 4: Simplify right side
    201,112.12x = 32,263,994,898.16
  5. Step 5: Solve for x
    x = 32,263,994,898.16/201,112.12
  6. Step 6: Final answer
    x = 160,427.90

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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.