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Finding the Fourth Proportional to 117,880.97, 176,818.22 and 51,320.98

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Solution

The fourth proportional to 117,880.97, 176,818.22 and 51,320.98 is: 76,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,880.97 : 176,818.22 = 51,320.98 : x
  2. Step 2: Convert to fraction form
    117,880.97/176,818.22 = 51,320.98/x
  3. Step 3: Cross multiply
    117,880.97x = 176,818.22 × 51,320.98
  4. Step 4: Simplify right side
    117,880.97x = 9,074,483,191.56
  5. Step 5: Solve for x
    x = 9,074,483,191.56/117,880.97
  6. Step 6: Final answer
    x = 76,980.05

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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.