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Finding the Fourth Proportional to 339,346.88, 508,811.24 and 114,686.16

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Solution

The fourth proportional to 339,346.88, 508,811.24 and 114,686.16 is: 171,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,346.88 : 508,811.24 = 114,686.16 : x
  2. Step 2: Convert to fraction form
    339,346.88/508,811.24 = 114,686.16/x
  3. Step 3: Cross multiply
    339,346.88x = 508,811.24 × 114,686.16
  4. Step 4: Simplify right side
    339,346.88x = 58,353,607,280.44
  5. Step 5: Solve for x
    x = 58,353,607,280.44/339,346.88
  6. Step 6: Final answer
    x = 171,958.58

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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.