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Finding the Fourth Proportional to 118,868.78, 178,237.52 and 48,797.30

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Solution

The fourth proportional to 118,868.78, 178,237.52 and 48,797.30 is: 73,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,868.78 : 178,237.52 = 48,797.30 : x
  2. Step 2: Convert to fraction form
    118,868.78/178,237.52 = 48,797.30/x
  3. Step 3: Cross multiply
    118,868.78x = 178,237.52 × 48,797.30
  4. Step 4: Simplify right side
    118,868.78x = 8,697,509,734.70
  5. Step 5: Solve for x
    x = 8,697,509,734.70/118,868.78
  6. Step 6: Final answer
    x = 73,169.00

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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.