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Finding the Fourth Proportional to 117,395.81, 176,093.72 and 55,066.31

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Solution

The fourth proportional to 117,395.81, 176,093.72 and 55,066.31 is: 82,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,395.81 : 176,093.72 = 55,066.31 : x
  2. Step 2: Convert to fraction form
    117,395.81/176,093.72 = 55,066.31/x
  3. Step 3: Cross multiply
    117,395.81x = 176,093.72 × 55,066.31
  4. Step 4: Simplify right side
    117,395.81x = 9,696,831,952.47
  5. Step 5: Solve for x
    x = 9,696,831,952.47/117,395.81
  6. Step 6: Final answer
    x = 82,599.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.