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Finding the Fourth Proportional to 117,880.60, 176,863.53 and 72,849.25

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Solution

The fourth proportional to 117,880.60, 176,863.53 and 72,849.25 is: 109,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,880.60 : 176,863.53 = 72,849.25 : x
  2. Step 2: Convert to fraction form
    117,880.60/176,863.53 = 72,849.25/x
  3. Step 3: Cross multiply
    117,880.60x = 176,863.53 × 72,849.25
  4. Step 4: Simplify right side
    117,880.60x = 12,884,375,512.85
  5. Step 5: Solve for x
    x = 12,884,375,512.85/117,880.60
  6. Step 6: Final answer
    x = 109,300.22

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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.