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Finding the Fourth Proportional to 64,120.86, 88,486.86 and 35,826.54

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Solution

The fourth proportional to 64,120.86, 88,486.86 and 35,826.54 is: 49,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.86 : 88,486.86 = 35,826.54 : x
  2. Step 2: Convert to fraction form
    64,120.86/88,486.86 = 35,826.54/x
  3. Step 3: Cross multiply
    64,120.86x = 88,486.86 × 35,826.54
  4. Step 4: Simplify right side
    64,120.86x = 3,170,178,029.26
  5. Step 5: Solve for x
    x = 3,170,178,029.26/64,120.86
  6. Step 6: Final answer
    x = 49,440.67

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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.