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Finding the Fourth Proportional to 249,920.48, 344,839.31 and 147,894.88

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Solution

The fourth proportional to 249,920.48, 344,839.31 and 147,894.88 is: 204,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,920.48 : 344,839.31 = 147,894.88 : x
  2. Step 2: Convert to fraction form
    249,920.48/344,839.31 = 147,894.88/x
  3. Step 3: Cross multiply
    249,920.48x = 344,839.31 × 147,894.88
  4. Step 4: Simplify right side
    249,920.48x = 50,999,967,971.34
  5. Step 5: Solve for x
    x = 50,999,967,971.34/249,920.48
  6. Step 6: Final answer
    x = 204,064.78

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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.