Home / 353,043.20-529,398.41-128,245.16

Finding the Fourth Proportional to 353,043.20, 529,398.41 and 128,245.16

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Solution

The fourth proportional to 353,043.20, 529,398.41 and 128,245.16 is: 192,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,043.20 : 529,398.41 = 128,245.16 : x
  2. Step 2: Convert to fraction form
    353,043.20/529,398.41 = 128,245.16/x
  3. Step 3: Cross multiply
    353,043.20x = 529,398.41 × 128,245.16
  4. Step 4: Simplify right side
    353,043.20x = 67,892,783,794.20
  5. Step 5: Solve for x
    x = 67,892,783,794.20/353,043.20
  6. Step 6: Final answer
    x = 192,307.30

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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.