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Finding the Fourth Proportional to 100,391.30, 150,531.94 and 46,297.26

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Solution

The fourth proportional to 100,391.30, 150,531.94 and 46,297.26 is: 69,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.30 : 150,531.94 = 46,297.26 : x
  2. Step 2: Convert to fraction form
    100,391.30/150,531.94 = 46,297.26/x
  3. Step 3: Cross multiply
    100,391.30x = 150,531.94 × 46,297.26
  4. Step 4: Simplify right side
    100,391.30x = 6,969,216,364.48
  5. Step 5: Solve for x
    x = 6,969,216,364.48/100,391.30
  6. Step 6: Final answer
    x = 69,420.52

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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.