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Finding the Fourth Proportional to 92,898.96, 128,198.44 and 50,456.58

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Solution

The fourth proportional to 92,898.96, 128,198.44 and 50,456.58 is: 69,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,898.96 : 128,198.44 = 50,456.58 : x
  2. Step 2: Convert to fraction form
    92,898.96/128,198.44 = 50,456.58/x
  3. Step 3: Cross multiply
    92,898.96x = 128,198.44 × 50,456.58
  4. Step 4: Simplify right side
    92,898.96x = 6,468,454,843.74
  5. Step 5: Solve for x
    x = 6,468,454,843.74/92,898.96
  6. Step 6: Final answer
    x = 69,628.93

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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.