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Finding the Fourth Proportional to 252,878.76, 379,372.77 and 134,532.90

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Solution

The fourth proportional to 252,878.76, 379,372.77 and 134,532.90 is: 201,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,878.76 : 379,372.77 = 134,532.90 : x
  2. Step 2: Convert to fraction form
    252,878.76/379,372.77 = 134,532.90/x
  3. Step 3: Cross multiply
    252,878.76x = 379,372.77 × 134,532.90
  4. Step 4: Simplify right side
    252,878.76x = 51,038,118,929.13
  5. Step 5: Solve for x
    x = 51,038,118,929.13/252,878.76
  6. Step 6: Final answer
    x = 201,828.41

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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.