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Finding the Fourth Proportional to 125,378.55, 188,065.85 and 50,496.93

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Solution

The fourth proportional to 125,378.55, 188,065.85 and 50,496.93 is: 75,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,378.55 : 188,065.85 = 50,496.93 : x
  2. Step 2: Convert to fraction form
    125,378.55/188,065.85 = 50,496.93/x
  3. Step 3: Cross multiply
    125,378.55x = 188,065.85 × 50,496.93
  4. Step 4: Simplify right side
    125,378.55x = 9,496,747,810.36
  5. Step 5: Solve for x
    x = 9,496,747,810.36/125,378.55
  6. Step 6: Final answer
    x = 75,744.60

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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.