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Finding the Fourth Proportional to 114,220.70, 171,331.05 and 102,556.70

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Solution

The fourth proportional to 114,220.70, 171,331.05 and 102,556.70 is: 153,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,220.70 : 171,331.05 = 102,556.70 : x
  2. Step 2: Convert to fraction form
    114,220.70/171,331.05 = 102,556.70/x
  3. Step 3: Cross multiply
    114,220.70x = 171,331.05 × 102,556.70
  4. Step 4: Simplify right side
    114,220.70x = 17,571,147,095.54
  5. Step 5: Solve for x
    x = 17,571,147,095.54/114,220.70
  6. Step 6: Final answer
    x = 153,835.05

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1.5x scale

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.