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Finding the Fourth Proportional to 119,288.59, 164,618.59 and 68,302.09

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Solution

The fourth proportional to 119,288.59, 164,618.59 and 68,302.09 is: 94,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,288.59 : 164,618.59 = 68,302.09 : x
  2. Step 2: Convert to fraction form
    119,288.59/164,618.59 = 68,302.09/x
  3. Step 3: Cross multiply
    119,288.59x = 164,618.59 × 68,302.09
  4. Step 4: Simplify right side
    119,288.59x = 11,243,793,749.85
  5. Step 5: Solve for x
    x = 11,243,793,749.85/119,288.59
  6. Step 6: Final answer
    x = 94,257.08

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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.