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Finding the Fourth Proportional to 153,556.61, 230,367.72 and 53,720.06

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Solution

The fourth proportional to 153,556.61, 230,367.72 and 53,720.06 is: 80,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,556.61 : 230,367.72 = 53,720.06 : x
  2. Step 2: Convert to fraction form
    153,556.61/230,367.72 = 53,720.06/x
  3. Step 3: Cross multiply
    153,556.61x = 230,367.72 × 53,720.06
  4. Step 4: Simplify right side
    153,556.61x = 12,375,367,351.78
  5. Step 5: Solve for x
    x = 12,375,367,351.78/153,556.61
  6. Step 6: Final answer
    x = 80,591.56

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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.