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Finding the Fourth Proportional to 67,676.16, 101,293.44 and 61,209.60

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Solution

The fourth proportional to 67,676.16, 101,293.44 and 61,209.60 is: 91,614.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,676.16 : 101,293.44 = 61,209.60 : x
  2. Step 2: Convert to fraction form
    67,676.16/101,293.44 = 61,209.60/x
  3. Step 3: Cross multiply
    67,676.16x = 101,293.44 × 61,209.60
  4. Step 4: Simplify right side
    67,676.16x = 6,200,130,945.02
  5. Step 5: Solve for x
    x = 6,200,130,945.02/67,676.16
  6. Step 6: Final answer
    x = 91,614.70

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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.