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Finding the Fourth Proportional to 249,995.61, 344,668.23 and 159,318.49

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Solution

The fourth proportional to 249,995.61, 344,668.23 and 159,318.49 is: 219,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,995.61 : 344,668.23 = 159,318.49 : x
  2. Step 2: Convert to fraction form
    249,995.61/344,668.23 = 159,318.49/x
  3. Step 3: Cross multiply
    249,995.61x = 344,668.23 × 159,318.49
  4. Step 4: Simplify right side
    249,995.61x = 54,912,019,837.00
  5. Step 5: Solve for x
    x = 54,912,019,837.00/249,995.61
  6. Step 6: Final answer
    x = 219,651.94

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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.