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Finding the Fourth Proportional to 125,525, 173,239.86 and 72,533

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Solution

The fourth proportional to 125,525, 173,239.86 and 72,533 is: 100,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,525 : 173,239.86 = 72,533 : x
  2. Step 2: Convert to fraction form
    125,525/173,239.86 = 72,533/x
  3. Step 3: Cross multiply
    125,525x = 173,239.86 × 72,533
  4. Step 4: Simplify right side
    125,525x = 12,565,606,765.38
  5. Step 5: Solve for x
    x = 12,565,606,765.38/125,525
  6. Step 6: Final answer
    x = 100,104.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.