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Finding the Fourth Proportional to 74,252.80, 111,292.80 and 29,857.60

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Solution

The fourth proportional to 74,252.80, 111,292.80 and 29,857.60 is: 44,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,252.80 : 111,292.80 = 29,857.60 : x
  2. Step 2: Convert to fraction form
    74,252.80/111,292.80 = 29,857.60/x
  3. Step 3: Cross multiply
    74,252.80x = 111,292.80 × 29,857.60
  4. Step 4: Simplify right side
    74,252.80x = 3,322,935,905.28
  5. Step 5: Solve for x
    x = 3,322,935,905.28/74,252.80
  6. Step 6: Final answer
    x = 44,751.66

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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.