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Finding the Fourth Proportional to 200,794.72, 277,050.20 and 120,191.60

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Solution

The fourth proportional to 200,794.72, 277,050.20 and 120,191.60 is: 165,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,794.72 : 277,050.20 = 120,191.60 : x
  2. Step 2: Convert to fraction form
    200,794.72/277,050.20 = 120,191.60/x
  3. Step 3: Cross multiply
    200,794.72x = 277,050.20 × 120,191.60
  4. Step 4: Simplify right side
    200,794.72x = 33,299,106,818.32
  5. Step 5: Solve for x
    x = 33,299,106,818.32/200,794.72
  6. Step 6: Final answer
    x = 165,836.57

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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.