Home / 353,111.40-529,871.90-131,517.80

Finding the Fourth Proportional to 353,111.40, 529,871.90 and 131,517.80

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Solution

The fourth proportional to 353,111.40, 529,871.90 and 131,517.80 is: 197,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,111.40 : 529,871.90 = 131,517.80 : x
  2. Step 2: Convert to fraction form
    353,111.40/529,871.90 = 131,517.80/x
  3. Step 3: Cross multiply
    353,111.40x = 529,871.90 × 131,517.80
  4. Step 4: Simplify right side
    353,111.40x = 69,687,586,569.82
  5. Step 5: Solve for x
    x = 69,687,586,569.82/353,111.40
  6. Step 6: Final answer
    x = 197,352.98

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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.