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Finding the Fourth Proportional to 116,440.80, 174,661.20 and 93,112.80

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Solution

The fourth proportional to 116,440.80, 174,661.20 and 93,112.80 is: 139,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,440.80 : 174,661.20 = 93,112.80 : x
  2. Step 2: Convert to fraction form
    116,440.80/174,661.20 = 93,112.80/x
  3. Step 3: Cross multiply
    116,440.80x = 174,661.20 × 93,112.80
  4. Step 4: Simplify right side
    116,440.80x = 16,263,193,383.36
  5. Step 5: Solve for x
    x = 16,263,193,383.36/116,440.80
  6. Step 6: Final answer
    x = 139,669.20

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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.