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Finding the Fourth Proportional to 125,461.72, 188,049.40 and 50,533.88

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Solution

The fourth proportional to 125,461.72, 188,049.40 and 50,533.88 is: 75,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,461.72 : 188,049.40 = 50,533.88 : x
  2. Step 2: Convert to fraction form
    125,461.72/188,049.40 = 50,533.88/x
  3. Step 3: Cross multiply
    125,461.72x = 188,049.40 × 50,533.88
  4. Step 4: Simplify right side
    125,461.72x = 9,502,865,813.67
  5. Step 5: Solve for x
    x = 9,502,865,813.67/125,461.72
  6. Step 6: Final answer
    x = 75,743.15

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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.