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Finding the Fourth Proportional to 354,471.89, 531,705.11 and 88,230.60

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Solution

The fourth proportional to 354,471.89, 531,705.11 and 88,230.60 is: 132,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,471.89 : 531,705.11 = 88,230.60 : x
  2. Step 2: Convert to fraction form
    354,471.89/531,705.11 = 88,230.60/x
  3. Step 3: Cross multiply
    354,471.89x = 531,705.11 × 88,230.60
  4. Step 4: Simplify right side
    354,471.89x = 46,912,660,437.21
  5. Step 5: Solve for x
    x = 46,912,660,437.21/354,471.89
  6. Step 6: Final answer
    x = 132,345.22

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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.