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Finding the Fourth Proportional to 74,809.44, 103,297.68 and 71,426.88

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Solution

The fourth proportional to 74,809.44, 103,297.68 and 71,426.88 is: 98,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.44 : 103,297.68 = 71,426.88 : x
  2. Step 2: Convert to fraction form
    74,809.44/103,297.68 = 71,426.88/x
  3. Step 3: Cross multiply
    74,809.44x = 103,297.68 × 71,426.88
  4. Step 4: Simplify right side
    74,809.44x = 7,378,230,993.64
  5. Step 5: Solve for x
    x = 7,378,230,993.64/74,809.44
  6. Step 6: Final answer
    x = 98,627.00

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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.