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Finding the Fourth Proportional to 135,351.51, 186,785.51 and 73,261.98

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Solution

The fourth proportional to 135,351.51, 186,785.51 and 73,261.98 is: 101,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,351.51 : 186,785.51 = 73,261.98 : x
  2. Step 2: Convert to fraction form
    135,351.51/186,785.51 = 73,261.98/x
  3. Step 3: Cross multiply
    135,351.51x = 186,785.51 × 73,261.98
  4. Step 4: Simplify right side
    135,351.51x = 13,684,275,931.60
  5. Step 5: Solve for x
    x = 13,684,275,931.60/135,351.51
  6. Step 6: Final answer
    x = 101,101.76

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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.