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Finding the Fourth Proportional to 117,441,946.80, 176,162,920.20 and 87,208,858.80

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Solution

The fourth proportional to 117,441,946.80, 176,162,920.20 and 87,208,858.80 is: 130,813,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,441,946.80 : 176,162,920.20 = 87,208,858.80 : x
  2. Step 2: Convert to fraction form
    117,441,946.80/176,162,920.20 = 87,208,858.80/x
  3. Step 3: Cross multiply
    117,441,946.80x = 176,162,920.20 × 87,208,858.80
  4. Step 4: Simplify right side
    117,441,946.80x = 15,362,967,233,517,466
  5. Step 5: Solve for x
    x = 15,362,967,233,517,466/117,441,946.80
  6. Step 6: Final answer
    x = 130,813,288.20

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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.