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Finding the Fourth Proportional to 250,689.32, 375,993.60 and 73,154.72

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Solution

The fourth proportional to 250,689.32, 375,993.60 and 73,154.72 is: 109,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,689.32 : 375,993.60 = 73,154.72 : x
  2. Step 2: Convert to fraction form
    250,689.32/375,993.60 = 73,154.72/x
  3. Step 3: Cross multiply
    250,689.32x = 375,993.60 × 73,154.72
  4. Step 4: Simplify right side
    250,689.32x = 27,505,706,529.79
  5. Step 5: Solve for x
    x = 27,505,706,529.79/250,689.32
  6. Step 6: Final answer
    x = 109,720.30

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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.