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Finding the Fourth Proportional to 267,347.45, 400,887.74 and 87,409.44

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Solution

The fourth proportional to 267,347.45, 400,887.74 and 87,409.44 is: 131,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,347.45 : 400,887.74 = 87,409.44 : x
  2. Step 2: Convert to fraction form
    267,347.45/400,887.74 = 87,409.44/x
  3. Step 3: Cross multiply
    267,347.45x = 400,887.74 × 87,409.44
  4. Step 4: Simplify right side
    267,347.45x = 35,041,373,074.79
  5. Step 5: Solve for x
    x = 35,041,373,074.79/267,347.45
  6. Step 6: Final answer
    x = 131,070.53

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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.