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Finding the Fourth Proportional to 84,801.84, 117,030.60 and 48,996.60

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Solution

The fourth proportional to 84,801.84, 117,030.60 and 48,996.60 is: 67,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,801.84 : 117,030.60 = 48,996.60 : x
  2. Step 2: Convert to fraction form
    84,801.84/117,030.60 = 48,996.60/x
  3. Step 3: Cross multiply
    84,801.84x = 117,030.60 × 48,996.60
  4. Step 4: Simplify right side
    84,801.84x = 5,734,101,495.96
  5. Step 5: Solve for x
    x = 5,734,101,495.96/84,801.84
  6. Step 6: Final answer
    x = 67,617.65

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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.