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Finding the Fourth Proportional to 117,798.53, 176,630.67 and 80,403.89

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Solution

The fourth proportional to 117,798.53, 176,630.67 and 80,403.89 is: 120,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,798.53 : 176,630.67 = 80,403.89 : x
  2. Step 2: Convert to fraction form
    117,798.53/176,630.67 = 80,403.89/x
  3. Step 3: Cross multiply
    117,798.53x = 176,630.67 × 80,403.89
  4. Step 4: Simplify right side
    117,798.53x = 14,201,792,078.15
  5. Step 5: Solve for x
    x = 14,201,792,078.15/117,798.53
  6. Step 6: Final answer
    x = 120,560.02

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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.