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Finding the Fourth Proportional to 201,975.17, 278,713.01 and 111,326.13

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Solution

The fourth proportional to 201,975.17, 278,713.01 and 111,326.13 is: 153,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,975.17 : 278,713.01 = 111,326.13 : x
  2. Step 2: Convert to fraction form
    201,975.17/278,713.01 = 111,326.13/x
  3. Step 3: Cross multiply
    201,975.17x = 278,713.01 × 111,326.13
  4. Step 4: Simplify right side
    201,975.17x = 31,028,040,227.32
  5. Step 5: Solve for x
    x = 31,028,040,227.32/201,975.17
  6. Step 6: Final answer
    x = 153,623.05

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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.