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Finding the Fourth Proportional to 119,301.94, 164,636.81 and 65,587.87

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Solution

The fourth proportional to 119,301.94, 164,636.81 and 65,587.87 is: 90,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,301.94 : 164,636.81 = 65,587.87 : x
  2. Step 2: Convert to fraction form
    119,301.94/164,636.81 = 65,587.87/x
  3. Step 3: Cross multiply
    119,301.94x = 164,636.81 × 65,587.87
  4. Step 4: Simplify right side
    119,301.94x = 10,798,177,691.49
  5. Step 5: Solve for x
    x = 10,798,177,691.49/119,301.94
  6. Step 6: Final answer
    x = 90,511.33

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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.