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Finding the Fourth Proportional to 201,142.88, 277,577.28 and 111,718.88

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Solution

The fourth proportional to 201,142.88, 277,577.28 and 111,718.88 is: 154,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,142.88 : 277,577.28 = 111,718.88 : x
  2. Step 2: Convert to fraction form
    201,142.88/277,577.28 = 111,718.88/x
  3. Step 3: Cross multiply
    201,142.88x = 277,577.28 × 111,718.88
  4. Step 4: Simplify right side
    201,142.88x = 31,010,622,835.05
  5. Step 5: Solve for x
    x = 31,010,622,835.05/201,142.88
  6. Step 6: Final answer
    x = 154,172.11

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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.