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Finding the Fourth Proportional to 211,422.29, 317,132.01 and 51,496.29

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Solution

The fourth proportional to 211,422.29, 317,132.01 and 51,496.29 is: 77,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,422.29 : 317,132.01 = 51,496.29 : x
  2. Step 2: Convert to fraction form
    211,422.29/317,132.01 = 51,496.29/x
  3. Step 3: Cross multiply
    211,422.29x = 317,132.01 × 51,496.29
  4. Step 4: Simplify right side
    211,422.29x = 16,331,121,955.24
  5. Step 5: Solve for x
    x = 16,331,121,955.24/211,422.29
  6. Step 6: Final answer
    x = 77,244.09

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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.