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Finding the Fourth Proportional to 249,701.70, 344,589.78 and 136,524.42

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Solution

The fourth proportional to 249,701.70, 344,589.78 and 136,524.42 is: 188,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,701.70 : 344,589.78 = 136,524.42 : x
  2. Step 2: Convert to fraction form
    249,701.70/344,589.78 = 136,524.42/x
  3. Step 3: Cross multiply
    249,701.70x = 344,589.78 × 136,524.42
  4. Step 4: Simplify right side
    249,701.70x = 47,044,919,852.43
  5. Step 5: Solve for x
    x = 47,044,919,852.43/249,701.70
  6. Step 6: Final answer
    x = 188,404.48

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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.