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Finding the Fourth Proportional to 117,182.80, 161,712.30 and 63,468.04

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Solution

The fourth proportional to 117,182.80, 161,712.30 and 63,468.04 is: 87,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,182.80 : 161,712.30 = 63,468.04 : x
  2. Step 2: Convert to fraction form
    117,182.80/161,712.30 = 63,468.04/x
  3. Step 3: Cross multiply
    117,182.80x = 161,712.30 × 63,468.04
  4. Step 4: Simplify right side
    117,182.80x = 10,263,562,724.89
  5. Step 5: Solve for x
    x = 10,263,562,724.89/117,182.80
  6. Step 6: Final answer
    x = 87,585.91

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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.