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Finding the Fourth Proportional to 250,259.10, 375,352.20 and 72,747.60

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Solution

The fourth proportional to 250,259.10, 375,352.20 and 72,747.60 is: 109,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,259.10 : 375,352.20 = 72,747.60 : x
  2. Step 2: Convert to fraction form
    250,259.10/375,352.20 = 72,747.60/x
  3. Step 3: Cross multiply
    250,259.10x = 375,352.20 × 72,747.60
  4. Step 4: Simplify right side
    250,259.10x = 27,305,971,704.72
  5. Step 5: Solve for x
    x = 27,305,971,704.72/250,259.10
  6. Step 6: Final answer
    x = 109,110.80

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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.