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Finding the Fourth Proportional to 114,903.60, 158,589.68 and 74,560.72

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Solution

The fourth proportional to 114,903.60, 158,589.68 and 74,560.72 is: 102,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,903.60 : 158,589.68 = 74,560.72 : x
  2. Step 2: Convert to fraction form
    114,903.60/158,589.68 = 74,560.72/x
  3. Step 3: Cross multiply
    114,903.60x = 158,589.68 × 74,560.72
  4. Step 4: Simplify right side
    114,903.60x = 11,824,560,725.37
  5. Step 5: Solve for x
    x = 11,824,560,725.37/114,903.60
  6. Step 6: Final answer
    x = 102,908.53

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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.