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Finding the Fourth Proportional to 119,427.58, 164,814.03 and 65,716.54

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Solution

The fourth proportional to 119,427.58, 164,814.03 and 65,716.54 is: 90,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,427.58 : 164,814.03 = 65,716.54 : x
  2. Step 2: Convert to fraction form
    119,427.58/164,814.03 = 65,716.54/x
  3. Step 3: Cross multiply
    119,427.58x = 164,814.03 × 65,716.54
  4. Step 4: Simplify right side
    119,427.58x = 10,831,007,795.06
  5. Step 5: Solve for x
    x = 10,831,007,795.06/119,427.58
  6. Step 6: Final answer
    x = 90,691.01

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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.