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Finding the Fourth Proportional to 63,485.60, 87,620.48 and 48,354.08

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Solution

The fourth proportional to 63,485.60, 87,620.48 and 48,354.08 is: 66,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,485.60 : 87,620.48 = 48,354.08 : x
  2. Step 2: Convert to fraction form
    63,485.60/87,620.48 = 48,354.08/x
  3. Step 3: Cross multiply
    63,485.60x = 87,620.48 × 48,354.08
  4. Step 4: Simplify right side
    63,485.60x = 4,236,807,699.56
  5. Step 5: Solve for x
    x = 4,236,807,699.56/63,485.60
  6. Step 6: Final answer
    x = 66,736.52

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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.