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Finding the Fourth Proportional to 133,086.30, 199,629.45 and 66,536.70

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Solution

The fourth proportional to 133,086.30, 199,629.45 and 66,536.70 is: 99,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,086.30 : 199,629.45 = 66,536.70 : x
  2. Step 2: Convert to fraction form
    133,086.30/199,629.45 = 66,536.70/x
  3. Step 3: Cross multiply
    133,086.30x = 199,629.45 × 66,536.70
  4. Step 4: Simplify right side
    133,086.30x = 13,282,684,825.82
  5. Step 5: Solve for x
    x = 13,282,684,825.82/133,086.30
  6. Step 6: Final answer
    x = 99,805.05

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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.