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Finding the Fourth Proportional to 193,501.80, 289,815.30 and 114,769.80

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Solution

The fourth proportional to 193,501.80, 289,815.30 and 114,769.80 is: 171,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,501.80 : 289,815.30 = 114,769.80 : x
  2. Step 2: Convert to fraction form
    193,501.80/289,815.30 = 114,769.80/x
  3. Step 3: Cross multiply
    193,501.80x = 289,815.30 × 114,769.80
  4. Step 4: Simplify right side
    193,501.80x = 33,262,044,017.94
  5. Step 5: Solve for x
    x = 33,262,044,017.94/193,501.80
  6. Step 6: Final answer
    x = 171,895.27

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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.