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Finding the Fourth Proportional to 73,605.12, 110,406.40 and 18,201.12

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Solution

The fourth proportional to 73,605.12, 110,406.40 and 18,201.12 is: 27,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,605.12 : 110,406.40 = 18,201.12 : x
  2. Step 2: Convert to fraction form
    73,605.12/110,406.40 = 18,201.12/x
  3. Step 3: Cross multiply
    73,605.12x = 110,406.40 × 18,201.12
  4. Step 4: Simplify right side
    73,605.12x = 2,009,520,135.17
  5. Step 5: Solve for x
    x = 2,009,520,135.17/73,605.12
  6. Step 6: Final answer
    x = 27,301.36

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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.