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Finding the Fourth Proportional to 80,332.02, 120,531.08 and 35,330.22

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Solution

The fourth proportional to 80,332.02, 120,531.08 and 35,330.22 is: 53,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,332.02 : 120,531.08 = 35,330.22 : x
  2. Step 2: Convert to fraction form
    80,332.02/120,531.08 = 35,330.22/x
  3. Step 3: Cross multiply
    80,332.02x = 120,531.08 × 35,330.22
  4. Step 4: Simplify right side
    80,332.02x = 4,258,389,661.56
  5. Step 5: Solve for x
    x = 4,258,389,661.56/80,332.02
  6. Step 6: Final answer
    x = 53,009.87

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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.