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Finding the Fourth Proportional to 261,817.48, 361,307.22 and 147,099.07

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Solution

The fourth proportional to 261,817.48, 361,307.22 and 147,099.07 is: 202,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,817.48 : 361,307.22 = 147,099.07 : x
  2. Step 2: Convert to fraction form
    261,817.48/361,307.22 = 147,099.07/x
  3. Step 3: Cross multiply
    261,817.48x = 361,307.22 × 147,099.07
  4. Step 4: Simplify right side
    261,817.48x = 53,147,955,946.30
  5. Step 5: Solve for x
    x = 53,147,955,946.30/261,817.48
  6. Step 6: Final answer
    x = 202,996.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.