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Finding the Fourth Proportional to 84,620.66, 116,788.98 and 48,803.72

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Solution

The fourth proportional to 84,620.66, 116,788.98 and 48,803.72 is: 67,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,620.66 : 116,788.98 = 48,803.72 : x
  2. Step 2: Convert to fraction form
    84,620.66/116,788.98 = 48,803.72/x
  3. Step 3: Cross multiply
    84,620.66x = 116,788.98 × 48,803.72
  4. Step 4: Simplify right side
    84,620.66x = 5,699,736,679.01
  5. Step 5: Solve for x
    x = 5,699,736,679.01/84,620.66
  6. Step 6: Final answer
    x = 67,356.33

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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.