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Finding the Fourth Proportional to 201,999.54, 279,263.25 and 151,611.06

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Solution

The fourth proportional to 201,999.54, 279,263.25 and 151,611.06 is: 209,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,999.54 : 279,263.25 = 151,611.06 : x
  2. Step 2: Convert to fraction form
    201,999.54/279,263.25 = 151,611.06/x
  3. Step 3: Cross multiply
    201,999.54x = 279,263.25 × 151,611.06
  4. Step 4: Simplify right side
    201,999.54x = 42,339,397,351.55
  5. Step 5: Solve for x
    x = 42,339,397,351.55/201,999.54
  6. Step 6: Final answer
    x = 209,601.45

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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.