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Finding the Fourth Proportional to 249,212.82, 343,913.59 and 136,035.57

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Solution

The fourth proportional to 249,212.82, 343,913.59 and 136,035.57 is: 187,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,212.82 : 343,913.59 = 136,035.57 : x
  2. Step 2: Convert to fraction form
    249,212.82/343,913.59 = 136,035.57/x
  3. Step 3: Cross multiply
    249,212.82x = 343,913.59 × 136,035.57
  4. Step 4: Simplify right side
    249,212.82x = 46,784,481,246.40
  5. Step 5: Solve for x
    x = 46,784,481,246.40/249,212.82
  6. Step 6: Final answer
    x = 187,729.03

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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.