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Finding the Fourth Proportional to 249,951.80, 374,927.43 and 81,472.07

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Solution

The fourth proportional to 249,951.80, 374,927.43 and 81,472.07 is: 122,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,951.80 : 374,927.43 = 81,472.07 : x
  2. Step 2: Convert to fraction form
    249,951.80/374,927.43 = 81,472.07/x
  3. Step 3: Cross multiply
    249,951.80x = 374,927.43 × 81,472.07
  4. Step 4: Simplify right side
    249,951.80x = 30,546,113,821.88
  5. Step 5: Solve for x
    x = 30,546,113,821.88/249,951.80
  6. Step 6: Final answer
    x = 122,208.02

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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.