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Finding the Fourth Proportional to 152,610.13, 228,619.99 and 85,847.41

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Solution

The fourth proportional to 152,610.13, 228,619.99 and 85,847.41 is: 128,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,610.13 : 228,619.99 = 85,847.41 : x
  2. Step 2: Convert to fraction form
    152,610.13/228,619.99 = 85,847.41/x
  3. Step 3: Cross multiply
    152,610.13x = 228,619.99 × 85,847.41
  4. Step 4: Simplify right side
    152,610.13x = 19,626,434,015.73
  5. Step 5: Solve for x
    x = 19,626,434,015.73/152,610.13
  6. Step 6: Final answer
    x = 128,605.05

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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.