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Finding the Fourth Proportional to 118,868.61, 178,237.31 and 48,797.13

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Solution

The fourth proportional to 118,868.61, 178,237.31 and 48,797.13 is: 73,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,868.61 : 178,237.31 = 48,797.13 : x
  2. Step 2: Convert to fraction form
    118,868.61/178,237.31 = 48,797.13/x
  3. Step 3: Cross multiply
    118,868.61x = 178,237.31 × 48,797.13
  4. Step 4: Simplify right side
    118,868.61x = 8,697,469,885.81
  5. Step 5: Solve for x
    x = 8,697,469,885.81/118,868.61
  6. Step 6: Final answer
    x = 73,168.77

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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.