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Finding the Fourth Proportional to 201,211.58, 277,611.42 and 120,609.69

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Solution

The fourth proportional to 201,211.58, 277,611.42 and 120,609.69 is: 166,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,211.58 : 277,611.42 = 120,609.69 : x
  2. Step 2: Convert to fraction form
    201,211.58/277,611.42 = 120,609.69/x
  3. Step 3: Cross multiply
    201,211.58x = 277,611.42 × 120,609.69
  4. Step 4: Simplify right side
    201,211.58x = 33,482,627,306.66
  5. Step 5: Solve for x
    x = 33,482,627,306.66/201,211.58
  6. Step 6: Final answer
    x = 166,405.08

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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.