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Finding the Fourth Proportional to 353,308.91, 529,950.87 and 100,590.75

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Solution

The fourth proportional to 353,308.91, 529,950.87 and 100,590.75 is: 150,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,308.91 : 529,950.87 = 100,590.75 : x
  2. Step 2: Convert to fraction form
    353,308.91/529,950.87 = 100,590.75/x
  3. Step 3: Cross multiply
    353,308.91x = 529,950.87 × 100,590.75
  4. Step 4: Simplify right side
    353,308.91x = 53,308,155,476.45
  5. Step 5: Solve for x
    x = 53,308,155,476.45/353,308.91
  6. Step 6: Final answer
    x = 150,882.57

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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.