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Finding the Fourth Proportional to 116,503,276.80, 174,754,915.20 and 80,223,571.20

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Solution

The fourth proportional to 116,503,276.80, 174,754,915.20 and 80,223,571.20 is: 120,335,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503,276.80 : 174,754,915.20 = 80,223,571.20 : x
  2. Step 2: Convert to fraction form
    116,503,276.80/174,754,915.20 = 80,223,571.20/x
  3. Step 3: Cross multiply
    116,503,276.80x = 174,754,915.20 × 80,223,571.20
  4. Step 4: Simplify right side
    116,503,276.80x = 14,019,463,382,097,162
  5. Step 5: Solve for x
    x = 14,019,463,382,097,162/116,503,276.80
  6. Step 6: Final answer
    x = 120,335,356.80

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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.