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Finding the Fourth Proportional to 249,761.80, 374,642.70 and 173,654.20

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Solution

The fourth proportional to 249,761.80, 374,642.70 and 173,654.20 is: 260,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,761.80 : 374,642.70 = 173,654.20 : x
  2. Step 2: Convert to fraction form
    249,761.80/374,642.70 = 173,654.20/x
  3. Step 3: Cross multiply
    249,761.80x = 374,642.70 × 173,654.20
  4. Step 4: Simplify right side
    249,761.80x = 65,058,278,354.34
  5. Step 5: Solve for x
    x = 65,058,278,354.34/249,761.80
  6. Step 6: Final answer
    x = 260,481.30

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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.