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Finding the Fourth Proportional to 211,692.39, 318,805.82 and 192,796.71

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Solution

The fourth proportional to 211,692.39, 318,805.82 and 192,796.71 is: 290,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,692.39 : 318,805.82 = 192,796.71 : x
  2. Step 2: Convert to fraction form
    211,692.39/318,805.82 = 192,796.71/x
  3. Step 3: Cross multiply
    211,692.39x = 318,805.82 × 192,796.71
  4. Step 4: Simplify right side
    211,692.39x = 61,464,713,706.84
  5. Step 5: Solve for x
    x = 61,464,713,706.84/211,692.39
  6. Step 6: Final answer
    x = 290,349.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.