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Finding the Fourth Proportional to 338,985, 467,813.88 and 188,082

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Solution

The fourth proportional to 338,985, 467,813.88 and 188,082 is: 259,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,985 : 467,813.88 = 188,082 : x
  2. Step 2: Convert to fraction form
    338,985/467,813.88 = 188,082/x
  3. Step 3: Cross multiply
    338,985x = 467,813.88 × 188,082
  4. Step 4: Simplify right side
    338,985x = 87,987,370,178.16
  5. Step 5: Solve for x
    x = 87,987,370,178.16/338,985
  6. Step 6: Final answer
    x = 259,561.25

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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.