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Finding the Fourth Proportional to 63,455.46, 87,390.87 and 62,077.86

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Solution

The fourth proportional to 63,455.46, 87,390.87 and 62,077.86 is: 85,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,455.46 : 87,390.87 = 62,077.86 : x
  2. Step 2: Convert to fraction form
    63,455.46/87,390.87 = 62,077.86/x
  3. Step 3: Cross multiply
    63,455.46x = 87,390.87 × 62,077.86
  4. Step 4: Simplify right side
    63,455.46x = 5,425,038,193.14
  5. Step 5: Solve for x
    x = 5,425,038,193.14/63,455.46
  6. Step 6: Final answer
    x = 85,493.64

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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.