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Finding the Fourth Proportional to 249,287.67, 373,932.12 and 99,540.15

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Solution

The fourth proportional to 249,287.67, 373,932.12 and 99,540.15 is: 149,310.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,287.67 : 373,932.12 = 99,540.15 : x
  2. Step 2: Convert to fraction form
    249,287.67/373,932.12 = 99,540.15/x
  3. Step 3: Cross multiply
    249,287.67x = 373,932.12 × 99,540.15
  4. Step 4: Simplify right side
    249,287.67x = 37,221,259,314.62
  5. Step 5: Solve for x
    x = 37,221,259,314.62/249,287.67
  6. Step 6: Final answer
    x = 149,310.47

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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.