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Finding the Fourth Proportional to 119,817, 164,958.78 and 94,278.36

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Solution

The fourth proportional to 119,817, 164,958.78 and 94,278.36 is: 129,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,817 : 164,958.78 = 94,278.36 : x
  2. Step 2: Convert to fraction form
    119,817/164,958.78 = 94,278.36/x
  3. Step 3: Cross multiply
    119,817x = 164,958.78 × 94,278.36
  4. Step 4: Simplify right side
    119,817x = 15,552,043,246.00
  5. Step 5: Solve for x
    x = 15,552,043,246.00/119,817
  6. Step 6: Final answer
    x = 129,798.30

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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.