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Finding the Fourth Proportional to 250,265.90, 375,435.46 and 72,749.84

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Solution

The fourth proportional to 250,265.90, 375,435.46 and 72,749.84 is: 109,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,265.90 : 375,435.46 = 72,749.84 : x
  2. Step 2: Convert to fraction form
    250,265.90/375,435.46 = 72,749.84/x
  3. Step 3: Cross multiply
    250,265.90x = 375,435.46 × 72,749.84
  4. Step 4: Simplify right side
    250,265.90x = 27,312,869,645.33
  5. Step 5: Solve for x
    x = 27,312,869,645.33/250,265.90
  6. Step 6: Final answer
    x = 109,135.40

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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.