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Finding the Fourth Proportional to 369,522.40, 554,283.60 and 132,872.80

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Solution

The fourth proportional to 369,522.40, 554,283.60 and 132,872.80 is: 199,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,522.40 : 554,283.60 = 132,872.80 : x
  2. Step 2: Convert to fraction form
    369,522.40/554,283.60 = 132,872.80/x
  3. Step 3: Cross multiply
    369,522.40x = 554,283.60 × 132,872.80
  4. Step 4: Simplify right side
    369,522.40x = 73,649,213,926.08
  5. Step 5: Solve for x
    x = 73,649,213,926.08/369,522.40
  6. Step 6: Final answer
    x = 199,309.20

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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.