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Finding the Fourth Proportional to 250,264.79, 375,433.79 and 72,748.73

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Solution

The fourth proportional to 250,264.79, 375,433.79 and 72,748.73 is: 109,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,264.79 : 375,433.79 = 72,748.73 : x
  2. Step 2: Convert to fraction form
    250,264.79/375,433.79 = 72,748.73/x
  3. Step 3: Cross multiply
    250,264.79x = 375,433.79 × 72,748.73
  4. Step 4: Simplify right side
    250,264.79x = 27,312,331,996.43
  5. Step 5: Solve for x
    x = 27,312,331,996.43/250,264.79
  6. Step 6: Final answer
    x = 109,133.74

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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.