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Finding the Fourth Proportional to 135,050.83, 186,365.12 and 74,620.17

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Solution

The fourth proportional to 135,050.83, 186,365.12 and 74,620.17 is: 102,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,050.83 : 186,365.12 = 74,620.17 : x
  2. Step 2: Convert to fraction form
    135,050.83/186,365.12 = 74,620.17/x
  3. Step 3: Cross multiply
    135,050.83x = 186,365.12 × 74,620.17
  4. Step 4: Simplify right side
    135,050.83x = 13,906,596,563.37
  5. Step 5: Solve for x
    x = 13,906,596,563.37/135,050.83
  6. Step 6: Final answer
    x = 102,973.06

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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.