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Finding the Fourth Proportional to 153,469.96, 211,687.14 and 96,009.58

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Solution

The fourth proportional to 153,469.96, 211,687.14 and 96,009.58 is: 132,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,469.96 : 211,687.14 = 96,009.58 : x
  2. Step 2: Convert to fraction form
    153,469.96/211,687.14 = 96,009.58/x
  3. Step 3: Cross multiply
    153,469.96x = 211,687.14 × 96,009.58
  4. Step 4: Simplify right side
    153,469.96x = 20,323,993,402.80
  5. Step 5: Solve for x
    x = 20,323,993,402.80/153,469.96
  6. Step 6: Final answer
    x = 132,429.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.