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Finding the Fourth Proportional to 355,526.30, 533,231.06 and 153,067.90

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Solution

The fourth proportional to 355,526.30, 533,231.06 and 153,067.90 is: 229,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,526.30 : 533,231.06 = 153,067.90 : x
  2. Step 2: Convert to fraction form
    355,526.30/533,231.06 = 153,067.90/x
  3. Step 3: Cross multiply
    355,526.30x = 533,231.06 × 153,067.90
  4. Step 4: Simplify right side
    355,526.30x = 81,620,556,044.75
  5. Step 5: Solve for x
    x = 81,620,556,044.75/355,526.30
  6. Step 6: Final answer
    x = 229,576.71

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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.