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Finding the Fourth Proportional to 261,622.25, 392,491.88 and 95,410.25

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Solution

The fourth proportional to 261,622.25, 392,491.88 and 95,410.25 is: 143,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,622.25 : 392,491.88 = 95,410.25 : x
  2. Step 2: Convert to fraction form
    261,622.25/392,491.88 = 95,410.25/x
  3. Step 3: Cross multiply
    261,622.25x = 392,491.88 × 95,410.25
  4. Step 4: Simplify right side
    261,622.25x = 37,447,747,916.72
  5. Step 5: Solve for x
    x = 37,447,747,916.72/261,622.25
  6. Step 6: Final answer
    x = 143,136.71

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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.