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Finding the Fourth Proportional to 249,243.36, 343,950.48 and 136,068

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Solution

The fourth proportional to 249,243.36, 343,950.48 and 136,068 is: 187,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,243.36 : 343,950.48 = 136,068 : x
  2. Step 2: Convert to fraction form
    249,243.36/343,950.48 = 136,068/x
  3. Step 3: Cross multiply
    249,243.36x = 343,950.48 × 136,068
  4. Step 4: Simplify right side
    249,243.36x = 46,800,653,912.64
  5. Step 5: Solve for x
    x = 46,800,653,912.64/249,243.36
  6. Step 6: Final answer
    x = 187,770.92

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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.