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Finding the Fourth Proportional to 103,745.64, 155,621.58 and 40,563.24

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Solution

The fourth proportional to 103,745.64, 155,621.58 and 40,563.24 is: 60,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,745.64 : 155,621.58 = 40,563.24 : x
  2. Step 2: Convert to fraction form
    103,745.64/155,621.58 = 40,563.24/x
  3. Step 3: Cross multiply
    103,745.64x = 155,621.58 × 40,563.24
  4. Step 4: Simplify right side
    103,745.64x = 6,312,515,498.72
  5. Step 5: Solve for x
    x = 6,312,515,498.72/103,745.64
  6. Step 6: Final answer
    x = 60,846.08

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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.