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Finding the Fourth Proportional to 111,073.56, 166,613.52 and 43,602.80

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Solution

The fourth proportional to 111,073.56, 166,613.52 and 43,602.80 is: 65,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,073.56 : 166,613.52 = 43,602.80 : x
  2. Step 2: Convert to fraction form
    111,073.56/166,613.52 = 43,602.80/x
  3. Step 3: Cross multiply
    111,073.56x = 166,613.52 × 43,602.80
  4. Step 4: Simplify right side
    111,073.56x = 7,264,815,156.79
  5. Step 5: Solve for x
    x = 7,264,815,156.79/111,073.56
  6. Step 6: Final answer
    x = 65,405.44

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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.