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Finding the Fourth Proportional to 92,709.23, 127,933.31 and 52,431.44

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Solution

The fourth proportional to 92,709.23, 127,933.31 and 52,431.44 is: 72,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,709.23 : 127,933.31 = 52,431.44 : x
  2. Step 2: Convert to fraction form
    92,709.23/127,933.31 = 52,431.44/x
  3. Step 3: Cross multiply
    92,709.23x = 127,933.31 × 52,431.44
  4. Step 4: Simplify right side
    92,709.23x = 6,707,727,405.11
  5. Step 5: Solve for x
    x = 6,707,727,405.11/92,709.23
  6. Step 6: Final answer
    x = 72,352.31

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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.