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Finding the Fourth Proportional to 359,435.73, 538,996.08 and 134,638.41

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Solution

The fourth proportional to 359,435.73, 538,996.08 and 134,638.41 is: 201,898.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,435.73 : 538,996.08 = 134,638.41 : x
  2. Step 2: Convert to fraction form
    359,435.73/538,996.08 = 134,638.41/x
  3. Step 3: Cross multiply
    359,435.73x = 538,996.08 × 134,638.41
  4. Step 4: Simplify right side
    359,435.73x = 72,569,575,207.43
  5. Step 5: Solve for x
    x = 72,569,575,207.43/359,435.73
  6. Step 6: Final answer
    x = 201,898.61

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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.