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Finding the Fourth Proportional to 77,433.73, 106,866.65 and 43,451.39

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Solution

The fourth proportional to 77,433.73, 106,866.65 and 43,451.39 is: 59,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,433.73 : 106,866.65 = 43,451.39 : x
  2. Step 2: Convert to fraction form
    77,433.73/106,866.65 = 43,451.39/x
  3. Step 3: Cross multiply
    77,433.73x = 106,866.65 × 43,451.39
  4. Step 4: Simplify right side
    77,433.73x = 4,643,504,487.14
  5. Step 5: Solve for x
    x = 4,643,504,487.14/77,433.73
  6. Step 6: Final answer
    x = 59,967.46

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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.