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Finding the Fourth Proportional to 270,197.10, 405,076.86 and 112,543.56

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Solution

The fourth proportional to 270,197.10, 405,076.86 and 112,543.56 is: 168,724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,197.10 : 405,076.86 = 112,543.56 : x
  2. Step 2: Convert to fraction form
    270,197.10/405,076.86 = 112,543.56/x
  3. Step 3: Cross multiply
    270,197.10x = 405,076.86 × 112,543.56
  4. Step 4: Simplify right side
    270,197.10x = 45,588,791,898.02
  5. Step 5: Solve for x
    x = 45,588,791,898.02/270,197.10
  6. Step 6: Final answer
    x = 168,724.21

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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.