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Finding the Fourth Proportional to 359,432.73, 538,991.60 and 134,635.41

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Solution

The fourth proportional to 359,432.73, 538,991.60 and 134,635.41 is: 201,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,432.73 : 538,991.60 = 134,635.41 : x
  2. Step 2: Convert to fraction form
    359,432.73/538,991.60 = 134,635.41/x
  3. Step 3: Cross multiply
    359,432.73x = 538,991.60 × 134,635.41
  4. Step 4: Simplify right side
    359,432.73x = 72,567,354,379.38
  5. Step 5: Solve for x
    x = 72,567,354,379.38/359,432.73
  6. Step 6: Final answer
    x = 201,894.12

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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.