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Finding the Fourth Proportional to 243,094.77, 335,487.62 and 135,685.73

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Solution

The fourth proportional to 243,094.77, 335,487.62 and 135,685.73 is: 187,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,094.77 : 335,487.62 = 135,685.73 : x
  2. Step 2: Convert to fraction form
    243,094.77/335,487.62 = 135,685.73/x
  3. Step 3: Cross multiply
    243,094.77x = 335,487.62 × 135,685.73
  4. Step 4: Simplify right side
    243,094.77x = 45,520,883,803.60
  5. Step 5: Solve for x
    x = 45,520,883,803.60/243,094.77
  6. Step 6: Final answer
    x = 187,255.71

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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.