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Finding the Fourth Proportional to 103,628.95, 155,443.43 and 33,515.35

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Solution

The fourth proportional to 103,628.95, 155,443.43 and 33,515.35 is: 50,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.95 : 155,443.43 = 33,515.35 : x
  2. Step 2: Convert to fraction form
    103,628.95/155,443.43 = 33,515.35/x
  3. Step 3: Cross multiply
    103,628.95x = 155,443.43 × 33,515.35
  4. Step 4: Simplify right side
    103,628.95x = 5,209,740,961.65
  5. Step 5: Solve for x
    x = 5,209,740,961.65/103,628.95
  6. Step 6: Final answer
    x = 50,273.03

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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.