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Finding the Fourth Proportional to 100,953.74, 151,474.35 and 54,151.94

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Solution

The fourth proportional to 100,953.74, 151,474.35 and 54,151.94 is: 81,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953.74 : 151,474.35 = 54,151.94 : x
  2. Step 2: Convert to fraction form
    100,953.74/151,474.35 = 54,151.94/x
  3. Step 3: Cross multiply
    100,953.74x = 151,474.35 × 54,151.94
  4. Step 4: Simplify right side
    100,953.74x = 8,202,630,494.49
  5. Step 5: Solve for x
    x = 8,202,630,494.49/100,953.74
  6. Step 6: Final answer
    x = 81,251.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.