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Finding the Fourth Proportional to 201,806.93, 278,492.26 and 111,160.79

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Solution

The fourth proportional to 201,806.93, 278,492.26 and 111,160.79 is: 153,401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,806.93 : 278,492.26 = 111,160.79 : x
  2. Step 2: Convert to fraction form
    201,806.93/278,492.26 = 111,160.79/x
  3. Step 3: Cross multiply
    201,806.93x = 278,492.26 × 111,160.79
  4. Step 4: Simplify right side
    201,806.93x = 30,957,420,048.81
  5. Step 5: Solve for x
    x = 30,957,420,048.81/201,806.93
  6. Step 6: Final answer
    x = 153,401.17

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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.