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Finding the Fourth Proportional to 250,103.63, 345,143.01 and 136,926.38

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Solution

The fourth proportional to 250,103.63, 345,143.01 and 136,926.38 is: 188,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,103.63 : 345,143.01 = 136,926.38 : x
  2. Step 2: Convert to fraction form
    250,103.63/345,143.01 = 136,926.38/x
  3. Step 3: Cross multiply
    250,103.63x = 345,143.01 × 136,926.38
  4. Step 4: Simplify right side
    250,103.63x = 47,259,182,941.60
  5. Step 5: Solve for x
    x = 47,259,182,941.60/250,103.63
  6. Step 6: Final answer
    x = 188,958.40

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1.5x scale

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.