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Finding the Fourth Proportional to 369,622.94, 554,494.21 and 144,861.48

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Solution

The fourth proportional to 369,622.94, 554,494.21 and 144,861.48 is: 217,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,622.94 : 554,494.21 = 144,861.48 : x
  2. Step 2: Convert to fraction form
    369,622.94/554,494.21 = 144,861.48/x
  3. Step 3: Cross multiply
    369,622.94x = 554,494.21 × 144,861.48
  4. Step 4: Simplify right side
    369,622.94x = 80,324,851,549.88
  5. Step 5: Solve for x
    x = 80,324,851,549.88/369,622.94
  6. Step 6: Final answer
    x = 217,315.66

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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.