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Finding the Fourth Proportional to 249,705.54, 374,569.25 and 72,230.49

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Solution

The fourth proportional to 249,705.54, 374,569.25 and 72,230.49 is: 108,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,705.54 : 374,569.25 = 72,230.49 : x
  2. Step 2: Convert to fraction form
    249,705.54/374,569.25 = 72,230.49/x
  3. Step 3: Cross multiply
    249,705.54x = 374,569.25 × 72,230.49
  4. Step 4: Simplify right side
    249,705.54x = 27,055,320,105.28
  5. Step 5: Solve for x
    x = 27,055,320,105.28/249,705.54
  6. Step 6: Final answer
    x = 108,348.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.