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Finding the Fourth Proportional to 125,238.66, 187,857.86 and 30,468.26

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Solution

The fourth proportional to 125,238.66, 187,857.86 and 30,468.26 is: 45,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,238.66 : 187,857.86 = 30,468.26 : x
  2. Step 2: Convert to fraction form
    125,238.66/187,857.86 = 30,468.26/x
  3. Step 3: Cross multiply
    125,238.66x = 187,857.86 × 30,468.26
  4. Step 4: Simplify right side
    125,238.66x = 5,723,701,029.89
  5. Step 5: Solve for x
    x = 5,723,701,029.89/125,238.66
  6. Step 6: Final answer
    x = 45,702.35

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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.