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Finding the Fourth Proportional to 119,453.72, 164,827.32 and 68,456.64

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Solution

The fourth proportional to 119,453.72, 164,827.32 and 68,456.64 is: 94,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,453.72 : 164,827.32 = 68,456.64 : x
  2. Step 2: Convert to fraction form
    119,453.72/164,827.32 = 68,456.64/x
  3. Step 3: Cross multiply
    119,453.72x = 164,827.32 × 68,456.64
  4. Step 4: Simplify right side
    119,453.72x = 11,283,524,507.40
  5. Step 5: Solve for x
    x = 11,283,524,507.40/119,453.72
  6. Step 6: Final answer
    x = 94,459.38

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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.