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Finding the Fourth Proportional to 111,483.88, 153,847.75 and 66,771.88

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Solution

The fourth proportional to 111,483.88, 153,847.75 and 66,771.88 is: 92,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,483.88 : 153,847.75 = 66,771.88 : x
  2. Step 2: Convert to fraction form
    111,483.88/153,847.75 = 66,771.88/x
  3. Step 3: Cross multiply
    111,483.88x = 153,847.75 × 66,771.88
  4. Step 4: Simplify right side
    111,483.88x = 10,272,702,732.03
  5. Step 5: Solve for x
    x = 10,272,702,732.03/111,483.88
  6. Step 6: Final answer
    x = 92,145.19

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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.