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Finding the Fourth Proportional to 92,709.25, 127,933.39 and 52,431.46

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Solution

The fourth proportional to 92,709.25, 127,933.39 and 52,431.46 is: 72,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,709.25 : 127,933.39 = 52,431.46 : x
  2. Step 2: Convert to fraction form
    92,709.25/127,933.39 = 52,431.46/x
  3. Step 3: Cross multiply
    92,709.25x = 127,933.39 × 52,431.46
  4. Step 4: Simplify right side
    92,709.25x = 6,707,734,166.16
  5. Step 5: Solve for x
    x = 6,707,734,166.16/92,709.25
  6. Step 6: Final answer
    x = 72,352.37

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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.