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Finding the Fourth Proportional to 117,568.40, 176,352.60 and 115,818.80

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Solution

The fourth proportional to 117,568.40, 176,352.60 and 115,818.80 is: 173,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,568.40 : 176,352.60 = 115,818.80 : x
  2. Step 2: Convert to fraction form
    117,568.40/176,352.60 = 115,818.80/x
  3. Step 3: Cross multiply
    117,568.40x = 176,352.60 × 115,818.80
  4. Step 4: Simplify right side
    117,568.40x = 20,424,946,508.88
  5. Step 5: Solve for x
    x = 20,424,946,508.88/117,568.40
  6. Step 6: Final answer
    x = 173,728.20

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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.