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Finding the Fourth Proportional to 317,112.92, 437,554.22 and 188,027.54

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Solution

The fourth proportional to 317,112.92, 437,554.22 and 188,027.54 is: 259,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,112.92 : 437,554.22 = 188,027.54 : x
  2. Step 2: Convert to fraction form
    317,112.92/437,554.22 = 188,027.54/x
  3. Step 3: Cross multiply
    317,112.92x = 437,554.22 × 188,027.54
  4. Step 4: Simplify right side
    317,112.92x = 82,272,243,603.22
  5. Step 5: Solve for x
    x = 82,272,243,603.22/317,112.92
  6. Step 6: Final answer
    x = 259,441.47

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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.