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Finding the Fourth Proportional to 500,128.76, 750,270.90 and 167,627

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Solution

The fourth proportional to 500,128.76, 750,270.90 and 167,627 is: 251,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,128.76 : 750,270.90 = 167,627 : x
  2. Step 2: Convert to fraction form
    500,128.76/750,270.90 = 167,627/x
  3. Step 3: Cross multiply
    500,128.76x = 750,270.90 × 167,627
  4. Step 4: Simplify right side
    500,128.76x = 125,765,660,154.30
  5. Step 5: Solve for x
    x = 125,765,660,154.30/500,128.76
  6. Step 6: Final answer
    x = 251,466.56

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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.