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Finding the Fourth Proportional to 125,038.44, 172,534.50 and 75,954.57

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Solution

The fourth proportional to 125,038.44, 172,534.50 and 75,954.57 is: 104,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,038.44 : 172,534.50 = 75,954.57 : x
  2. Step 2: Convert to fraction form
    125,038.44/172,534.50 = 75,954.57/x
  3. Step 3: Cross multiply
    125,038.44x = 172,534.50 × 75,954.57
  4. Step 4: Simplify right side
    125,038.44x = 13,104,783,757.67
  5. Step 5: Solve for x
    x = 13,104,783,757.67/125,038.44
  6. Step 6: Final answer
    x = 104,806.04

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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.