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Finding the Fourth Proportional to 119,203.29, 164,503.44 and 65,491.79

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Solution

The fourth proportional to 119,203.29, 164,503.44 and 65,491.79 is: 90,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,203.29 : 164,503.44 = 65,491.79 : x
  2. Step 2: Convert to fraction form
    119,203.29/164,503.44 = 65,491.79/x
  3. Step 3: Cross multiply
    119,203.29x = 164,503.44 × 65,491.79
  4. Step 4: Simplify right side
    119,203.29x = 10,773,623,924.24
  5. Step 5: Solve for x
    x = 10,773,623,924.24/119,203.29
  6. Step 6: Final answer
    x = 90,380.26

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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.