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Finding the Fourth Proportional to 125,448.60, 173,131.36 and 71,741.54

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Solution

The fourth proportional to 125,448.60, 173,131.36 and 71,741.54 is: 99,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,448.60 : 173,131.36 = 71,741.54 : x
  2. Step 2: Convert to fraction form
    125,448.60/173,131.36 = 71,741.54/x
  3. Step 3: Cross multiply
    125,448.60x = 173,131.36 × 71,741.54
  4. Step 4: Simplify right side
    125,448.60x = 12,420,710,388.69
  5. Step 5: Solve for x
    x = 12,420,710,388.69/125,448.60
  6. Step 6: Final answer
    x = 99,010.35

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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.