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Finding the Fourth Proportional to 118,868.85, 178,294.41 and 43,953.98

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Solution

The fourth proportional to 118,868.85, 178,294.41 and 43,953.98 is: 65,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,868.85 : 178,294.41 = 43,953.98 : x
  2. Step 2: Convert to fraction form
    118,868.85/178,294.41 = 43,953.98/x
  3. Step 3: Cross multiply
    118,868.85x = 178,294.41 × 43,953.98
  4. Step 4: Simplify right side
    118,868.85x = 7,836,748,039.78
  5. Step 5: Solve for x
    x = 7,836,748,039.78/118,868.85
  6. Step 6: Final answer
    x = 65,927.68

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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.