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Finding the Fourth Proportional to 125,524, 173,238.48 and 72,532

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Solution

The fourth proportional to 125,524, 173,238.48 and 72,532 is: 100,103.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,524 : 173,238.48 = 72,532 : x
  2. Step 2: Convert to fraction form
    125,524/173,238.48 = 72,532/x
  3. Step 3: Cross multiply
    125,524x = 173,238.48 × 72,532
  4. Step 4: Simplify right side
    125,524x = 12,565,333,431.36
  5. Step 5: Solve for x
    x = 12,565,333,431.36/125,524
  6. Step 6: Final answer
    x = 100,103.04

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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.