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Finding the Fourth Proportional to 140,878.38, 211,330.68 and 50,943.63

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Solution

The fourth proportional to 140,878.38, 211,330.68 and 50,943.63 is: 76,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,878.38 : 211,330.68 = 50,943.63 : x
  2. Step 2: Convert to fraction form
    140,878.38/211,330.68 = 50,943.63/x
  3. Step 3: Cross multiply
    140,878.38x = 211,330.68 × 50,943.63
  4. Step 4: Simplify right side
    140,878.38x = 10,765,951,969.57
  5. Step 5: Solve for x
    x = 10,765,951,969.57/140,878.38
  6. Step 6: Final answer
    x = 76,420.19

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1.5x scale

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.