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Finding the Fourth Proportional to 228,034.53, 314,799.89 and 143,198.37

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Solution

The fourth proportional to 228,034.53, 314,799.89 and 143,198.37 is: 197,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,034.53 : 314,799.89 = 143,198.37 : x
  2. Step 2: Convert to fraction form
    228,034.53/314,799.89 = 143,198.37/x
  3. Step 3: Cross multiply
    228,034.53x = 314,799.89 × 143,198.37
  4. Step 4: Simplify right side
    228,034.53x = 45,078,830,408.19
  5. Step 5: Solve for x
    x = 45,078,830,408.19/228,034.53
  6. Step 6: Final answer
    x = 197,684.23

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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.