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Finding the Fourth Proportional to 151,242.80, 226,720.20 and 56,447.60

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Solution

The fourth proportional to 151,242.80, 226,720.20 and 56,447.60 is: 84,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,242.80 : 226,720.20 = 56,447.60 : x
  2. Step 2: Convert to fraction form
    151,242.80/226,720.20 = 56,447.60/x
  3. Step 3: Cross multiply
    151,242.80x = 226,720.20 × 56,447.60
  4. Step 4: Simplify right side
    151,242.80x = 12,797,811,161.52
  5. Step 5: Solve for x
    x = 12,797,811,161.52/151,242.80
  6. Step 6: Final answer
    x = 84,617.66

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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.