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Finding the Fourth Proportional to 203,598.48, 280,999.62 and 112,983.56

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Solution

The fourth proportional to 203,598.48, 280,999.62 and 112,983.56 is: 155,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,598.48 : 280,999.62 = 112,983.56 : x
  2. Step 2: Convert to fraction form
    203,598.48/280,999.62 = 112,983.56/x
  3. Step 3: Cross multiply
    203,598.48x = 280,999.62 × 112,983.56
  4. Step 4: Simplify right side
    203,598.48x = 31,748,336,021.25
  5. Step 5: Solve for x
    x = 31,748,336,021.25/203,598.48
  6. Step 6: Final answer
    x = 155,936.02

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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.