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Finding the Fourth Proportional to 116,203.52, 174,305.28 and 81,211.52

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Solution

The fourth proportional to 116,203.52, 174,305.28 and 81,211.52 is: 121,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,203.52 : 174,305.28 = 81,211.52 : x
  2. Step 2: Convert to fraction form
    116,203.52/174,305.28 = 81,211.52/x
  3. Step 3: Cross multiply
    116,203.52x = 174,305.28 × 81,211.52
  4. Step 4: Simplify right side
    116,203.52x = 14,155,596,732.83
  5. Step 5: Solve for x
    x = 14,155,596,732.83/116,203.52
  6. Step 6: Final answer
    x = 121,817.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.