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Finding the Fourth Proportional to 84,491, 116,597.92 and 54,276.60

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Solution

The fourth proportional to 84,491, 116,597.92 and 54,276.60 is: 74,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,491 : 116,597.92 = 54,276.60 : x
  2. Step 2: Convert to fraction form
    84,491/116,597.92 = 54,276.60/x
  3. Step 3: Cross multiply
    84,491x = 116,597.92 × 54,276.60
  4. Step 4: Simplify right side
    84,491x = 6,328,538,664.67
  5. Step 5: Solve for x
    x = 6,328,538,664.67/84,491
  6. Step 6: Final answer
    x = 74,901.93

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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.