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Finding the Fourth Proportional to 118,603.60, 178,002.60 and 114,715.60

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Solution

The fourth proportional to 118,603.60, 178,002.60 and 114,715.60 is: 172,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,603.60 : 178,002.60 = 114,715.60 : x
  2. Step 2: Convert to fraction form
    118,603.60/178,002.60 = 114,715.60/x
  3. Step 3: Cross multiply
    118,603.60x = 178,002.60 × 114,715.60
  4. Step 4: Simplify right side
    118,603.60x = 20,419,675,060.56
  5. Step 5: Solve for x
    x = 20,419,675,060.56/118,603.60
  6. Step 6: Final answer
    x = 172,167.41

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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.