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Finding the Fourth Proportional to 201,008.76, 277,381.26 and 111,579

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Solution

The fourth proportional to 201,008.76, 277,381.26 and 111,579 is: 153,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,008.76 : 277,381.26 = 111,579 : x
  2. Step 2: Convert to fraction form
    201,008.76/277,381.26 = 111,579/x
  3. Step 3: Cross multiply
    201,008.76x = 277,381.26 × 111,579
  4. Step 4: Simplify right side
    201,008.76x = 30,949,923,609.54
  5. Step 5: Solve for x
    x = 30,949,923,609.54/201,008.76
  6. Step 6: Final answer
    x = 153,973.01

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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.