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Finding the Fourth Proportional to 136,958.66, 205,484.69 and 73,785.26

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Solution

The fourth proportional to 136,958.66, 205,484.69 and 73,785.26 is: 110,703.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,958.66 : 205,484.69 = 73,785.26 : x
  2. Step 2: Convert to fraction form
    136,958.66/205,484.69 = 73,785.26/x
  3. Step 3: Cross multiply
    136,958.66x = 205,484.69 × 73,785.26
  4. Step 4: Simplify right side
    136,958.66x = 15,161,739,881.32
  5. Step 5: Solve for x
    x = 15,161,739,881.32/136,958.66
  6. Step 6: Final answer
    x = 110,703.04

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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.