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Finding the Fourth Proportional to 249,016.44, 343,642.86 and 135,845.40

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Solution

The fourth proportional to 249,016.44, 343,642.86 and 135,845.40 is: 187,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,016.44 : 343,642.86 = 135,845.40 : x
  2. Step 2: Convert to fraction form
    249,016.44/343,642.86 = 135,845.40/x
  3. Step 3: Cross multiply
    249,016.44x = 343,642.86 × 135,845.40
  4. Step 4: Simplify right side
    249,016.44x = 46,682,301,773.84
  5. Step 5: Solve for x
    x = 46,682,301,773.84/249,016.44
  6. Step 6: Final answer
    x = 187,466.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.