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Finding the Fourth Proportional to 262,703.54, 394,110.68 and 85,196.72

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Solution

The fourth proportional to 262,703.54, 394,110.68 and 85,196.72 is: 127,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,703.54 : 394,110.68 = 85,196.72 : x
  2. Step 2: Convert to fraction form
    262,703.54/394,110.68 = 85,196.72/x
  3. Step 3: Cross multiply
    262,703.54x = 394,110.68 × 85,196.72
  4. Step 4: Simplify right side
    262,703.54x = 33,576,937,812.26
  5. Step 5: Solve for x
    x = 33,576,937,812.26/262,703.54
  6. Step 6: Final answer
    x = 127,813.04

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1.5x scale

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.