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Finding the Fourth Proportional to 117,825.44, 176,671.19 and 80,430.77

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Solution

The fourth proportional to 117,825.44, 176,671.19 and 80,430.77 is: 120,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,825.44 : 176,671.19 = 80,430.77 : x
  2. Step 2: Convert to fraction form
    117,825.44/176,671.19 = 80,430.77/x
  3. Step 3: Cross multiply
    117,825.44x = 176,671.19 × 80,430.77
  4. Step 4: Simplify right side
    117,825.44x = 14,209,800,491.27
  5. Step 5: Solve for x
    x = 14,209,800,491.27/117,825.44
  6. Step 6: Final answer
    x = 120,600.45

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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.