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Finding the Fourth Proportional to 125,669.46, 188,638.48 and 50,838.52

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Solution

The fourth proportional to 125,669.46, 188,638.48 and 50,838.52 is: 76,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,669.46 : 188,638.48 = 50,838.52 : x
  2. Step 2: Convert to fraction form
    125,669.46/188,638.48 = 50,838.52/x
  3. Step 3: Cross multiply
    125,669.46x = 188,638.48 × 50,838.52
  4. Step 4: Simplify right side
    125,669.46x = 9,590,100,539.56
  5. Step 5: Solve for x
    x = 9,590,100,539.56/125,669.46
  6. Step 6: Final answer
    x = 76,312.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.