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Finding the Fourth Proportional to 339,058.32, 508,632.12 and 125,797.20

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Solution

The fourth proportional to 339,058.32, 508,632.12 and 125,797.20 is: 188,712.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,058.32 : 508,632.12 = 125,797.20 : x
  2. Step 2: Convert to fraction form
    339,058.32/508,632.12 = 125,797.20/x
  3. Step 3: Cross multiply
    339,058.32x = 508,632.12 × 125,797.20
  4. Step 4: Simplify right side
    339,058.32x = 63,984,496,526.06
  5. Step 5: Solve for x
    x = 63,984,496,526.06/339,058.32
  6. Step 6: Final answer
    x = 188,712.36

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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.