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Finding the Fourth Proportional to 125,793.34, 188,237.76 and 92,430.52

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Solution

The fourth proportional to 125,793.34, 188,237.76 and 92,430.52 is: 138,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,793.34 : 188,237.76 = 92,430.52 : x
  2. Step 2: Convert to fraction form
    125,793.34/188,237.76 = 92,430.52/x
  3. Step 3: Cross multiply
    125,793.34x = 188,237.76 × 92,430.52
  4. Step 4: Simplify right side
    125,793.34x = 17,398,914,040.44
  5. Step 5: Solve for x
    x = 17,398,914,040.44/125,793.34
  6. Step 6: Final answer
    x = 138,313.48

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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.