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Finding the Fourth Proportional to 201,706.36, 278,352.48 and 111,060.43

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Solution

The fourth proportional to 201,706.36, 278,352.48 and 111,060.43 is: 153,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,706.36 : 278,352.48 = 111,060.43 : x
  2. Step 2: Convert to fraction form
    201,706.36/278,352.48 = 111,060.43/x
  3. Step 3: Cross multiply
    201,706.36x = 278,352.48 × 111,060.43
  4. Step 4: Simplify right side
    201,706.36x = 30,913,946,120.37
  5. Step 5: Solve for x
    x = 30,913,946,120.37/201,706.36
  6. Step 6: Final answer
    x = 153,262.13

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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.