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Finding the Fourth Proportional to 200,020.66, 276,018.84 and 113,999.80

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Solution

The fourth proportional to 200,020.66, 276,018.84 and 113,999.80 is: 157,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,020.66 : 276,018.84 = 113,999.80 : x
  2. Step 2: Convert to fraction form
    200,020.66/276,018.84 = 113,999.80/x
  3. Step 3: Cross multiply
    200,020.66x = 276,018.84 × 113,999.80
  4. Step 4: Simplify right side
    200,020.66x = 31,466,092,556.23
  5. Step 5: Solve for x
    x = 31,466,092,556.23/200,020.66
  6. Step 6: Final answer
    x = 157,314.21

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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.