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Finding the Fourth Proportional to 114,884.64, 158,433.84 and 74,555.28

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Solution

The fourth proportional to 114,884.64, 158,433.84 and 74,555.28 is: 102,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,884.64 : 158,433.84 = 74,555.28 : x
  2. Step 2: Convert to fraction form
    114,884.64/158,433.84 = 74,555.28/x
  3. Step 3: Cross multiply
    114,884.64x = 158,433.84 × 74,555.28
  4. Step 4: Simplify right side
    114,884.64x = 11,812,079,302.68
  5. Step 5: Solve for x
    x = 11,812,079,302.68/114,884.64
  6. Step 6: Final answer
    x = 102,816.87

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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.