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Finding the Fourth Proportional to 125,504.51, 173,077.51 and 82,407.98

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Solution

The fourth proportional to 125,504.51, 173,077.51 and 82,407.98 is: 113,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,504.51 : 173,077.51 = 82,407.98 : x
  2. Step 2: Convert to fraction form
    125,504.51/173,077.51 = 82,407.98/x
  3. Step 3: Cross multiply
    125,504.51x = 173,077.51 × 82,407.98
  4. Step 4: Simplify right side
    125,504.51x = 14,262,967,982.53
  5. Step 5: Solve for x
    x = 14,262,967,982.53/125,504.51
  6. Step 6: Final answer
    x = 113,645.06

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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.