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Finding the Fourth Proportional to 116,609.63, 160,921.28 and 68,863.77

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Solution

The fourth proportional to 116,609.63, 160,921.28 and 68,863.77 is: 95,032.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,609.63 : 160,921.28 = 68,863.77 : x
  2. Step 2: Convert to fraction form
    116,609.63/160,921.28 = 68,863.77/x
  3. Step 3: Cross multiply
    116,609.63x = 160,921.28 × 68,863.77
  4. Step 4: Simplify right side
    116,609.63x = 11,081,646,186.19
  5. Step 5: Solve for x
    x = 11,081,646,186.19/116,609.63
  6. Step 6: Final answer
    x = 95,032.00

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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.