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Finding the Fourth Proportional to 359,504.29, 539,450.79 and 135,018.46

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Solution

The fourth proportional to 359,504.29, 539,450.79 and 135,018.46 is: 202,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,504.29 : 539,450.79 = 135,018.46 : x
  2. Step 2: Convert to fraction form
    359,504.29/539,450.79 = 135,018.46/x
  3. Step 3: Cross multiply
    359,504.29x = 539,450.79 × 135,018.46
  4. Step 4: Simplify right side
    359,504.29x = 72,835,814,911.58
  5. Step 5: Solve for x
    x = 72,835,814,911.58/359,504.29
  6. Step 6: Final answer
    x = 202,600.68

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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.