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Finding the Fourth Proportional to 118,527.70, 177,543.15 and 55,401.70

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Solution

The fourth proportional to 118,527.70, 177,543.15 and 55,401.70 is: 82,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,527.70 : 177,543.15 = 55,401.70 : x
  2. Step 2: Convert to fraction form
    118,527.70/177,543.15 = 55,401.70/x
  3. Step 3: Cross multiply
    118,527.70x = 177,543.15 × 55,401.70
  4. Step 4: Simplify right side
    118,527.70x = 9,836,192,333.36
  5. Step 5: Solve for x
    x = 9,836,192,333.36/118,527.70
  6. Step 6: Final answer
    x = 82,986.44

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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.