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Finding the Fourth Proportional to 211,162.54, 316,774.70 and 61,383.37

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Solution

The fourth proportional to 211,162.54, 316,774.70 and 61,383.37 is: 92,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,162.54 : 316,774.70 = 61,383.37 : x
  2. Step 2: Convert to fraction form
    211,162.54/316,774.70 = 61,383.37/x
  3. Step 3: Cross multiply
    211,162.54x = 316,774.70 × 61,383.37
  4. Step 4: Simplify right side
    211,162.54x = 19,444,698,616.74
  5. Step 5: Solve for x
    x = 19,444,698,616.74/211,162.54
  6. Step 6: Final answer
    x = 92,084.03

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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.