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Finding the Fourth Proportional to 57,198.55, 85,746.79 and 29,102.89

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Solution

The fourth proportional to 57,198.55, 85,746.79 and 29,102.89 is: 43,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,198.55 : 85,746.79 = 29,102.89 : x
  2. Step 2: Convert to fraction form
    57,198.55/85,746.79 = 29,102.89/x
  3. Step 3: Cross multiply
    57,198.55x = 85,746.79 × 29,102.89
  4. Step 4: Simplify right side
    57,198.55x = 2,495,479,219.23
  5. Step 5: Solve for x
    x = 2,495,479,219.23/57,198.55
  6. Step 6: Final answer
    x = 43,628.37

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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.