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Finding the Fourth Proportional to 134,606.94, 185,768.40 and 74,189.88

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Solution

The fourth proportional to 134,606.94, 185,768.40 and 74,189.88 is: 102,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,606.94 : 185,768.40 = 74,189.88 : x
  2. Step 2: Convert to fraction form
    134,606.94/185,768.40 = 74,189.88/x
  3. Step 3: Cross multiply
    134,606.94x = 185,768.40 × 74,189.88
  4. Step 4: Simplify right side
    134,606.94x = 13,782,135,303.79
  5. Step 5: Solve for x
    x = 13,782,135,303.79/134,606.94
  6. Step 6: Final answer
    x = 102,388.00

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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.