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Finding the Fourth Proportional to 97,484.72, 134,531.16 and 55,043.60

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Solution

The fourth proportional to 97,484.72, 134,531.16 and 55,043.60 is: 75,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,484.72 : 134,531.16 = 55,043.60 : x
  2. Step 2: Convert to fraction form
    97,484.72/134,531.16 = 55,043.60/x
  3. Step 3: Cross multiply
    97,484.72x = 134,531.16 × 55,043.60
  4. Step 4: Simplify right side
    97,484.72x = 7,405,079,358.58
  5. Step 5: Solve for x
    x = 7,405,079,358.58/97,484.72
  6. Step 6: Final answer
    x = 75,961.44

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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.