Home / 353,187.18-529,775.82-86,949.90

Finding the Fourth Proportional to 353,187.18, 529,775.82 and 86,949.90

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Solution

The fourth proportional to 353,187.18, 529,775.82 and 86,949.90 is: 130,423.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,187.18 : 529,775.82 = 86,949.90 : x
  2. Step 2: Convert to fraction form
    353,187.18/529,775.82 = 86,949.90/x
  3. Step 3: Cross multiply
    353,187.18x = 529,775.82 × 86,949.90
  4. Step 4: Simplify right side
    353,187.18x = 46,063,954,571.42
  5. Step 5: Solve for x
    x = 46,063,954,571.42/353,187.18
  6. Step 6: Final answer
    x = 130,423.63

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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.