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Finding the Fourth Proportional to 85,846.46, 118,467.74 and 48,120.71

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Solution

The fourth proportional to 85,846.46, 118,467.74 and 48,120.71 is: 66,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,846.46 : 118,467.74 = 48,120.71 : x
  2. Step 2: Convert to fraction form
    85,846.46/118,467.74 = 48,120.71/x
  3. Step 3: Cross multiply
    85,846.46x = 118,467.74 × 48,120.71
  4. Step 4: Simplify right side
    85,846.46x = 5,700,750,927.95
  5. Step 5: Solve for x
    x = 5,700,750,927.95/85,846.46
  6. Step 6: Final answer
    x = 66,406.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.