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Finding the Fourth Proportional to 249,343.80, 374,937.30 and 208,793.40

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Solution

The fourth proportional to 249,343.80, 374,937.30 and 208,793.40 is: 313,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,343.80 : 374,937.30 = 208,793.40 : x
  2. Step 2: Convert to fraction form
    249,343.80/374,937.30 = 208,793.40/x
  3. Step 3: Cross multiply
    249,343.80x = 374,937.30 × 208,793.40
  4. Step 4: Simplify right side
    249,343.80x = 78,284,433,653.82
  5. Step 5: Solve for x
    x = 78,284,433,653.82/249,343.80
  6. Step 6: Final answer
    x = 313,961.82

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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.