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Finding the Fourth Proportional to 228,618.12, 315,575.82 and 186,102.84

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Solution

The fourth proportional to 228,618.12, 315,575.82 and 186,102.84 is: 256,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,618.12 : 315,575.82 = 186,102.84 : x
  2. Step 2: Convert to fraction form
    228,618.12/315,575.82 = 186,102.84/x
  3. Step 3: Cross multiply
    228,618.12x = 315,575.82 × 186,102.84
  4. Step 4: Simplify right side
    228,618.12x = 58,729,556,337.33
  5. Step 5: Solve for x
    x = 58,729,556,337.33/228,618.12
  6. Step 6: Final answer
    x = 256,889.33

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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.