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Finding the Fourth Proportional to 201,776.93, 278,448.73 and 111,141.37

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Solution

The fourth proportional to 201,776.93, 278,448.73 and 111,141.37 is: 153,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,776.93 : 278,448.73 = 111,141.37 : x
  2. Step 2: Convert to fraction form
    201,776.93/278,448.73 = 111,141.37/x
  3. Step 3: Cross multiply
    201,776.93x = 278,448.73 × 111,141.37
  4. Step 4: Simplify right side
    201,776.93x = 30,947,173,326.96
  5. Step 5: Solve for x
    x = 30,947,173,326.96/201,776.93
  6. Step 6: Final answer
    x = 153,373.20

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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.