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Finding the Fourth Proportional to 88,351.48, 121,858.86 and 61,495.48

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Solution

The fourth proportional to 88,351.48, 121,858.86 and 61,495.48 is: 84,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,351.48 : 121,858.86 = 61,495.48 : x
  2. Step 2: Convert to fraction form
    88,351.48/121,858.86 = 61,495.48/x
  3. Step 3: Cross multiply
    88,351.48x = 121,858.86 × 61,495.48
  4. Step 4: Simplify right side
    88,351.48x = 7,493,769,087.95
  5. Step 5: Solve for x
    x = 7,493,769,087.95/88,351.48
  6. Step 6: Final answer
    x = 84,817.70

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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.