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Finding the Fourth Proportional to 252,893.10, 379,339.65 and 65,904.60

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Solution

The fourth proportional to 252,893.10, 379,339.65 and 65,904.60 is: 98,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,893.10 : 379,339.65 = 65,904.60 : x
  2. Step 2: Convert to fraction form
    252,893.10/379,339.65 = 65,904.60/x
  3. Step 3: Cross multiply
    252,893.10x = 379,339.65 × 65,904.60
  4. Step 4: Simplify right side
    252,893.10x = 25,000,227,897.39
  5. Step 5: Solve for x
    x = 25,000,227,897.39/252,893.10
  6. Step 6: Final answer
    x = 98,856.90

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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.