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Finding the Fourth Proportional to 250,988.28, 376,443.39 and 82,507.49

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Solution

The fourth proportional to 250,988.28, 376,443.39 and 82,507.49 is: 123,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,988.28 : 376,443.39 = 82,507.49 : x
  2. Step 2: Convert to fraction form
    250,988.28/376,443.39 = 82,507.49/x
  3. Step 3: Cross multiply
    250,988.28x = 376,443.39 × 82,507.49
  4. Step 4: Simplify right side
    250,988.28x = 31,059,397,353.77
  5. Step 5: Solve for x
    x = 31,059,397,353.77/250,988.28
  6. Step 6: Final answer
    x = 123,748.40

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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.