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Finding the Fourth Proportional to 211,442.12, 317,174.16 and 53,672.12

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Solution

The fourth proportional to 211,442.12, 317,174.16 and 53,672.12 is: 80,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,442.12 : 317,174.16 = 53,672.12 : x
  2. Step 2: Convert to fraction form
    211,442.12/317,174.16 = 53,672.12/x
  3. Step 3: Cross multiply
    211,442.12x = 317,174.16 × 53,672.12
  4. Step 4: Simplify right side
    211,442.12x = 17,023,409,576.42
  5. Step 5: Solve for x
    x = 17,023,409,576.42/211,442.12
  6. Step 6: Final answer
    x = 80,510.97

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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.