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Finding the Fourth Proportional to 93,171.81, 139,495.26 and 83,723.97

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Solution

The fourth proportional to 93,171.81, 139,495.26 and 83,723.97 is: 125,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,171.81 : 139,495.26 = 83,723.97 : x
  2. Step 2: Convert to fraction form
    93,171.81/139,495.26 = 83,723.97/x
  3. Step 3: Cross multiply
    93,171.81x = 139,495.26 × 83,723.97
  4. Step 4: Simplify right side
    93,171.81x = 11,679,096,963.38
  5. Step 5: Solve for x
    x = 11,679,096,963.38/93,171.81
  6. Step 6: Final answer
    x = 125,350.11

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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.