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Finding the Fourth Proportional to 340,566.90, 510,892.76 and 115,910.07

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Solution

The fourth proportional to 340,566.90, 510,892.76 and 115,910.07 is: 173,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,566.90 : 510,892.76 = 115,910.07 : x
  2. Step 2: Convert to fraction form
    340,566.90/510,892.76 = 115,910.07/x
  3. Step 3: Cross multiply
    340,566.90x = 510,892.76 × 115,910.07
  4. Step 4: Simplify right side
    340,566.90x = 59,217,615,574.09
  5. Step 5: Solve for x
    x = 59,217,615,574.09/340,566.90
  6. Step 6: Final answer
    x = 173,879.54

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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.