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Finding the Fourth Proportional to 359,149.63, 538,729.71 and 106,455.70

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Solution

The fourth proportional to 359,149.63, 538,729.71 and 106,455.70 is: 159,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,149.63 : 538,729.71 = 106,455.70 : x
  2. Step 2: Convert to fraction form
    359,149.63/538,729.71 = 106,455.70/x
  3. Step 3: Cross multiply
    359,149.63x = 538,729.71 × 106,455.70
  4. Step 4: Simplify right side
    359,149.63x = 57,350,848,388.85
  5. Step 5: Solve for x
    x = 57,350,848,388.85/359,149.63
  6. Step 6: Final answer
    x = 159,685.11

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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.