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Finding the Fourth Proportional to 118,783.04, 178,049.72 and 43,855.41

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Solution

The fourth proportional to 118,783.04, 178,049.72 and 43,855.41 is: 65,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,783.04 : 178,049.72 = 43,855.41 : x
  2. Step 2: Convert to fraction form
    118,783.04/178,049.72 = 43,855.41/x
  3. Step 3: Cross multiply
    118,783.04x = 178,049.72 × 43,855.41
  4. Step 4: Simplify right side
    118,783.04x = 7,808,442,361.46
  5. Step 5: Solve for x
    x = 7,808,442,361.46/118,783.04
  6. Step 6: Final answer
    x = 65,737.02

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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.