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Finding the Fourth Proportional to 64,120.50, 88,484.64 and 35,826.42

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Solution

The fourth proportional to 64,120.50, 88,484.64 and 35,826.42 is: 49,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.50 : 88,484.64 = 35,826.42 : x
  2. Step 2: Convert to fraction form
    64,120.50/88,484.64 = 35,826.42/x
  3. Step 3: Cross multiply
    64,120.50x = 88,484.64 × 35,826.42
  4. Step 4: Simplify right side
    64,120.50x = 3,170,087,876.19
  5. Step 5: Solve for x
    x = 3,170,087,876.19/64,120.50
  6. Step 6: Final answer
    x = 49,439.54

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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.