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Finding the Fourth Proportional to 339,130.56, 508,690.66 and 114,648.68

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Solution

The fourth proportional to 339,130.56, 508,690.66 and 114,648.68 is: 171,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,130.56 : 508,690.66 = 114,648.68 : x
  2. Step 2: Convert to fraction form
    339,130.56/508,690.66 = 114,648.68/x
  3. Step 3: Cross multiply
    339,130.56x = 508,690.66 × 114,648.68
  4. Step 4: Simplify right side
    339,130.56x = 58,320,712,697.33
  5. Step 5: Solve for x
    x = 58,320,712,697.33/339,130.56
  6. Step 6: Final answer
    x = 171,971.27

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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.