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Finding the Fourth Proportional to 250,638.86, 375,952.03 and 73,147.40

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Solution

The fourth proportional to 250,638.86, 375,952.03 and 73,147.40 is: 109,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,638.86 : 375,952.03 = 73,147.40 : x
  2. Step 2: Convert to fraction form
    250,638.86/375,952.03 = 73,147.40/x
  3. Step 3: Cross multiply
    250,638.86x = 375,952.03 × 73,147.40
  4. Step 4: Simplify right side
    250,638.86x = 27,499,913,519.22
  5. Step 5: Solve for x
    x = 27,499,913,519.22/250,638.86
  6. Step 6: Final answer
    x = 109,719.27

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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.