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Finding the Fourth Proportional to 97,399.40, 134,411.27 and 54,961.88

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Solution

The fourth proportional to 97,399.40, 134,411.27 and 54,961.88 is: 75,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,399.40 : 134,411.27 = 54,961.88 : x
  2. Step 2: Convert to fraction form
    97,399.40/134,411.27 = 54,961.88/x
  3. Step 3: Cross multiply
    97,399.40x = 134,411.27 × 54,961.88
  4. Step 4: Simplify right side
    97,399.40x = 7,387,495,145.52
  5. Step 5: Solve for x
    x = 7,387,495,145.52/97,399.40
  6. Step 6: Final answer
    x = 75,847.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.