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Finding the Fourth Proportional to 92,615.31, 127,809.72 and 50,173.83

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Solution

The fourth proportional to 92,615.31, 127,809.72 and 50,173.83 is: 69,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,615.31 : 127,809.72 = 50,173.83 : x
  2. Step 2: Convert to fraction form
    92,615.31/127,809.72 = 50,173.83/x
  3. Step 3: Cross multiply
    92,615.31x = 127,809.72 × 50,173.83
  4. Step 4: Simplify right side
    92,615.31x = 6,412,703,163.63
  5. Step 5: Solve for x
    x = 6,412,703,163.63/92,615.31
  6. Step 6: Final answer
    x = 69,240.21

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1.5x scale

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.