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Finding the Fourth Proportional to 250,321.08, 375,478.18 and 60,782.90

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Solution

The fourth proportional to 250,321.08, 375,478.18 and 60,782.90 is: 91,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,321.08 : 375,478.18 = 60,782.90 : x
  2. Step 2: Convert to fraction form
    250,321.08/375,478.18 = 60,782.90/x
  3. Step 3: Cross multiply
    250,321.08x = 375,478.18 × 60,782.90
  4. Step 4: Simplify right side
    250,321.08x = 22,822,652,667.12
  5. Step 5: Solve for x
    x = 22,822,652,667.12/250,321.08
  6. Step 6: Final answer
    x = 91,173.51

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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.