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Finding the Fourth Proportional to 97,961.72, 135,186.54 and 53,249.72

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Solution

The fourth proportional to 97,961.72, 135,186.54 and 53,249.72 is: 73,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,961.72 : 135,186.54 = 53,249.72 : x
  2. Step 2: Convert to fraction form
    97,961.72/135,186.54 = 53,249.72/x
  3. Step 3: Cross multiply
    97,961.72x = 135,186.54 × 53,249.72
  4. Step 4: Simplify right side
    97,961.72x = 7,198,645,402.77
  5. Step 5: Solve for x
    x = 7,198,645,402.77/97,961.72
  6. Step 6: Final answer
    x = 73,484.27

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1.5x scale

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.