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Finding the Fourth Proportional to 103,698.56, 155,467.92 and 33,559.04

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Solution

The fourth proportional to 103,698.56, 155,467.92 and 33,559.04 is: 50,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,698.56 : 155,467.92 = 33,559.04 : x
  2. Step 2: Convert to fraction form
    103,698.56/155,467.92 = 33,559.04/x
  3. Step 3: Cross multiply
    103,698.56x = 155,467.92 × 33,559.04
  4. Step 4: Simplify right side
    103,698.56x = 5,217,354,146.00
  5. Step 5: Solve for x
    x = 5,217,354,146.00/103,698.56
  6. Step 6: Final answer
    x = 50,312.70

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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.