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Finding the Fourth Proportional to 252,994.39, 379,491.21 and 66,005.89

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Solution

The fourth proportional to 252,994.39, 379,491.21 and 66,005.89 is: 99,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,994.39 : 379,491.21 = 66,005.89 : x
  2. Step 2: Convert to fraction form
    252,994.39/379,491.21 = 66,005.89/x
  3. Step 3: Cross multiply
    252,994.39x = 379,491.21 × 66,005.89
  4. Step 4: Simplify right side
    252,994.39x = 25,048,655,063.23
  5. Step 5: Solve for x
    x = 25,048,655,063.23/252,994.39
  6. Step 6: Final answer
    x = 99,008.74

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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.