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Finding the Fourth Proportional to 211,511, 317,232.46 and 61,716.12

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Solution

The fourth proportional to 211,511, 317,232.46 and 61,716.12 is: 92,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,511 : 317,232.46 = 61,716.12 : x
  2. Step 2: Convert to fraction form
    211,511/317,232.46 = 61,716.12/x
  3. Step 3: Cross multiply
    211,511x = 317,232.46 × 61,716.12
  4. Step 4: Simplify right side
    211,511x = 19,578,356,569.26
  5. Step 5: Solve for x
    x = 19,578,356,569.26/211,511
  6. Step 6: Final answer
    x = 92,564.25

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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.