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Finding the Fourth Proportional to 88,249.50, 121,784.31 and 48,505.50

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Solution

The fourth proportional to 88,249.50, 121,784.31 and 48,505.50 is: 66,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,249.50 : 121,784.31 = 48,505.50 : x
  2. Step 2: Convert to fraction form
    88,249.50/121,784.31 = 48,505.50/x
  3. Step 3: Cross multiply
    88,249.50x = 121,784.31 × 48,505.50
  4. Step 4: Simplify right side
    88,249.50x = 5,907,208,848.71
  5. Step 5: Solve for x
    x = 5,907,208,848.71/88,249.50
  6. Step 6: Final answer
    x = 66,937.59

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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.