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Finding the Fourth Proportional to 101,404.60, 152,106.90 and 99,676.60

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Solution

The fourth proportional to 101,404.60, 152,106.90 and 99,676.60 is: 149,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,404.60 : 152,106.90 = 99,676.60 : x
  2. Step 2: Convert to fraction form
    101,404.60/152,106.90 = 99,676.60/x
  3. Step 3: Cross multiply
    101,404.60x = 152,106.90 × 99,676.60
  4. Step 4: Simplify right side
    101,404.60x = 15,161,498,628.54
  5. Step 5: Solve for x
    x = 15,161,498,628.54/101,404.60
  6. Step 6: Final answer
    x = 149,514.90

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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.