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Finding the Fourth Proportional to 249,889.70, 344,892.18 and 147,971.74

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Solution

The fourth proportional to 249,889.70, 344,892.18 and 147,971.74 is: 204,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,889.70 : 344,892.18 = 147,971.74 : x
  2. Step 2: Convert to fraction form
    249,889.70/344,892.18 = 147,971.74/x
  3. Step 3: Cross multiply
    249,889.70x = 344,892.18 × 147,971.74
  4. Step 4: Simplify right side
    249,889.70x = 51,034,295,986.99
  5. Step 5: Solve for x
    x = 51,034,295,986.99/249,889.70
  6. Step 6: Final answer
    x = 204,227.29

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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.