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Finding the Fourth Proportional to 359,163.19, 538,747.48 and 159,429.88

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Solution

The fourth proportional to 359,163.19, 538,747.48 and 159,429.88 is: 239,146.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,163.19 : 538,747.48 = 159,429.88 : x
  2. Step 2: Convert to fraction form
    359,163.19/538,747.48 = 159,429.88/x
  3. Step 3: Cross multiply
    359,163.19x = 538,747.48 × 159,429.88
  4. Step 4: Simplify right side
    359,163.19x = 85,892,444,939.12
  5. Step 5: Solve for x
    x = 85,892,444,939.12/359,163.19
  6. Step 6: Final answer
    x = 239,146.01

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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.