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Finding the Fourth Proportional to 111,847.85, 154,348.08 and 60,858.86

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Solution

The fourth proportional to 111,847.85, 154,348.08 and 60,858.86 is: 83,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,847.85 : 154,348.08 = 60,858.86 : x
  2. Step 2: Convert to fraction form
    111,847.85/154,348.08 = 60,858.86/x
  3. Step 3: Cross multiply
    111,847.85x = 154,348.08 × 60,858.86
  4. Step 4: Simplify right side
    111,847.85x = 9,393,448,191.99
  5. Step 5: Solve for x
    x = 9,393,448,191.99/111,847.85
  6. Step 6: Final answer
    x = 83,984.16

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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.