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Finding the Fourth Proportional to 92,660.80, 127,871.92 and 50,219.12

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Solution

The fourth proportional to 92,660.80, 127,871.92 and 50,219.12 is: 69,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,660.80 : 127,871.92 = 50,219.12 : x
  2. Step 2: Convert to fraction form
    92,660.80/127,871.92 = 50,219.12/x
  3. Step 3: Cross multiply
    92,660.80x = 127,871.92 × 50,219.12
  4. Step 4: Simplify right side
    92,660.80x = 6,421,615,295.11
  5. Step 5: Solve for x
    x = 6,421,615,295.11/92,660.80
  6. Step 6: Final answer
    x = 69,302.39

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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.