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Finding the Fourth Proportional to 101,990.58, 152,933.07 and 45,782.29

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Solution

The fourth proportional to 101,990.58, 152,933.07 and 45,782.29 is: 68,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,990.58 : 152,933.07 = 45,782.29 : x
  2. Step 2: Convert to fraction form
    101,990.58/152,933.07 = 45,782.29/x
  3. Step 3: Cross multiply
    101,990.58x = 152,933.07 × 45,782.29
  4. Step 4: Simplify right side
    101,990.58x = 7,001,626,524.18
  5. Step 5: Solve for x
    x = 7,001,626,524.18/101,990.58
  6. Step 6: Final answer
    x = 68,649.74

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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.