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Finding the Fourth Proportional to 249,694.67, 374,579.30 and 91,911.12

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Solution

The fourth proportional to 249,694.67, 374,579.30 and 91,911.12 is: 137,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,694.67 : 374,579.30 = 91,911.12 : x
  2. Step 2: Convert to fraction form
    249,694.67/374,579.30 = 91,911.12/x
  3. Step 3: Cross multiply
    249,694.67x = 374,579.30 × 91,911.12
  4. Step 4: Simplify right side
    249,694.67x = 34,428,002,532.26
  5. Step 5: Solve for x
    x = 34,428,002,532.26/249,694.67
  6. Step 6: Final answer
    x = 137,880.41

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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.