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Finding the Fourth Proportional to 318,618.36, 477,139.14 and 185,093.64

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Solution

The fourth proportional to 318,618.36, 477,139.14 and 185,093.64 is: 277,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,618.36 : 477,139.14 = 185,093.64 : x
  2. Step 2: Convert to fraction form
    318,618.36/477,139.14 = 185,093.64/x
  3. Step 3: Cross multiply
    318,618.36x = 477,139.14 × 185,093.64
  4. Step 4: Simplify right side
    318,618.36x = 88,315,420,209.07
  5. Step 5: Solve for x
    x = 88,315,420,209.07/318,618.36
  6. Step 6: Final answer
    x = 277,182.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.