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Finding the Fourth Proportional to 249,120.50, 343,793.59 and 135,950.54

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Solution

The fourth proportional to 249,120.50, 343,793.59 and 135,950.54 is: 187,615.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,120.50 : 343,793.59 = 135,950.54 : x
  2. Step 2: Convert to fraction form
    249,120.50/343,793.59 = 135,950.54/x
  3. Step 3: Cross multiply
    249,120.50x = 343,793.59 × 135,950.54
  4. Step 4: Simplify right side
    249,120.50x = 46,738,924,209.04
  5. Step 5: Solve for x
    x = 46,738,924,209.04/249,120.50
  6. Step 6: Final answer
    x = 187,615.73

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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.