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Finding the Fourth Proportional to 355,842.59, 533,791.17 and 103,126.50

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Solution

The fourth proportional to 355,842.59, 533,791.17 and 103,126.50 is: 154,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,842.59 : 533,791.17 = 103,126.50 : x
  2. Step 2: Convert to fraction form
    355,842.59/533,791.17 = 103,126.50/x
  3. Step 3: Cross multiply
    355,842.59x = 533,791.17 × 103,126.50
  4. Step 4: Simplify right side
    355,842.59x = 55,048,015,093.01
  5. Step 5: Solve for x
    x = 55,048,015,093.01/355,842.59
  6. Step 6: Final answer
    x = 154,697.66

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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.