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Finding the Fourth Proportional to 211,637.25, 317,455.88 and 63,893.25

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Solution

The fourth proportional to 211,637.25, 317,455.88 and 63,893.25 is: 95,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,637.25 : 317,455.88 = 63,893.25 : x
  2. Step 2: Convert to fraction form
    211,637.25/317,455.88 = 63,893.25/x
  3. Step 3: Cross multiply
    211,637.25x = 317,455.88 × 63,893.25
  4. Step 4: Simplify right side
    211,637.25x = 20,283,287,585.34
  5. Step 5: Solve for x
    x = 20,283,287,585.34/211,637.25
  6. Step 6: Final answer
    x = 95,839.88

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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.