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Finding the Fourth Proportional to 252,006.98, 378,084.30 and 74,518.60

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Solution

The fourth proportional to 252,006.98, 378,084.30 and 74,518.60 is: 111,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,006.98 : 378,084.30 = 74,518.60 : x
  2. Step 2: Convert to fraction form
    252,006.98/378,084.30 = 74,518.60/x
  3. Step 3: Cross multiply
    252,006.98x = 378,084.30 × 74,518.60
  4. Step 4: Simplify right side
    252,006.98x = 28,174,312,717.98
  5. Step 5: Solve for x
    x = 28,174,312,717.98/252,006.98
  6. Step 6: Final answer
    x = 111,799.73

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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.