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Finding the Fourth Proportional to 369,702.40, 554,553.46 and 145,168.48

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Solution

The fourth proportional to 369,702.40, 554,553.46 and 145,168.48 is: 217,752.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,702.40 : 554,553.46 = 145,168.48 : x
  2. Step 2: Convert to fraction form
    369,702.40/554,553.46 = 145,168.48/x
  3. Step 3: Cross multiply
    369,702.40x = 554,553.46 × 145,168.48
  4. Step 4: Simplify right side
    369,702.40x = 80,503,682,866.94
  5. Step 5: Solve for x
    x = 80,503,682,866.94/369,702.40
  6. Step 6: Final answer
    x = 217,752.67

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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.