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Finding the Fourth Proportional to 73,958.76, 102,063.14 and 40,424.76

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Solution

The fourth proportional to 73,958.76, 102,063.14 and 40,424.76 is: 55,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,958.76 : 102,063.14 = 40,424.76 : x
  2. Step 2: Convert to fraction form
    73,958.76/102,063.14 = 40,424.76/x
  3. Step 3: Cross multiply
    73,958.76x = 102,063.14 × 40,424.76
  4. Step 4: Simplify right side
    73,958.76x = 4,125,877,939.35
  5. Step 5: Solve for x
    x = 4,125,877,939.35/73,958.76
  6. Step 6: Final answer
    x = 55,786.20

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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.