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Finding the Fourth Proportional to 93,202.32, 139,934.16 and 89,003.28

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Solution

The fourth proportional to 93,202.32, 139,934.16 and 89,003.28 is: 133,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,202.32 : 139,934.16 = 89,003.28 : x
  2. Step 2: Convert to fraction form
    93,202.32/139,934.16 = 89,003.28/x
  3. Step 3: Cross multiply
    93,202.32x = 139,934.16 × 89,003.28
  4. Step 4: Simplify right side
    93,202.32x = 12,454,599,224.04
  5. Step 5: Solve for x
    x = 12,454,599,224.04/93,202.32
  6. Step 6: Final answer
    x = 133,629.71

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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.