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Finding the Fourth Proportional to 192,801.90, 289,030.05 and 171,806.70

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Solution

The fourth proportional to 192,801.90, 289,030.05 and 171,806.70 is: 257,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,801.90 : 289,030.05 = 171,806.70 : x
  2. Step 2: Convert to fraction form
    192,801.90/289,030.05 = 171,806.70/x
  3. Step 3: Cross multiply
    192,801.90x = 289,030.05 × 171,806.70
  4. Step 4: Simplify right side
    192,801.90x = 49,657,299,091.34
  5. Step 5: Solve for x
    x = 49,657,299,091.34/192,801.90
  6. Step 6: Final answer
    x = 257,556.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.