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Finding the Fourth Proportional to 111,334.60, 153,467.22 and 84,369.16

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Solution

The fourth proportional to 111,334.60, 153,467.22 and 84,369.16 is: 116,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,334.60 : 153,467.22 = 84,369.16 : x
  2. Step 2: Convert to fraction form
    111,334.60/153,467.22 = 84,369.16/x
  3. Step 3: Cross multiply
    111,334.60x = 153,467.22 × 84,369.16
  4. Step 4: Simplify right side
    111,334.60x = 12,947,900,438.94
  5. Step 5: Solve for x
    x = 12,947,900,438.94/111,334.60
  6. Step 6: Final answer
    x = 116,297.18

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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.