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Finding the Fourth Proportional to 103,693.70, 155,507.07 and 33,556.34

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Solution

The fourth proportional to 103,693.70, 155,507.07 and 33,556.34 is: 50,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.70 : 155,507.07 = 33,556.34 : x
  2. Step 2: Convert to fraction form
    103,693.70/155,507.07 = 33,556.34/x
  3. Step 3: Cross multiply
    103,693.70x = 155,507.07 × 33,556.34
  4. Step 4: Simplify right side
    103,693.70x = 5,218,248,113.32
  5. Step 5: Solve for x
    x = 5,218,248,113.32/103,693.70
  6. Step 6: Final answer
    x = 50,323.68

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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.