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Finding the Fourth Proportional to 263,395.49, 363,485.76 and 142,536.77

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Solution

The fourth proportional to 263,395.49, 363,485.76 and 142,536.77 is: 196,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,395.49 : 363,485.76 = 142,536.77 : x
  2. Step 2: Convert to fraction form
    263,395.49/363,485.76 = 142,536.77/x
  3. Step 3: Cross multiply
    263,395.49x = 363,485.76 × 142,536.77
  4. Step 4: Simplify right side
    263,395.49x = 51,810,086,171.40
  5. Step 5: Solve for x
    x = 51,810,086,171.40/263,395.49
  6. Step 6: Final answer
    x = 196,700.74

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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.