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Finding the Fourth Proportional to 93,066.60, 139,435.20 and 89,983.20

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Solution

The fourth proportional to 93,066.60, 139,435.20 and 89,983.20 is: 134,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,066.60 : 139,435.20 = 89,983.20 : x
  2. Step 2: Convert to fraction form
    93,066.60/139,435.20 = 89,983.20/x
  3. Step 3: Cross multiply
    93,066.60x = 139,435.20 × 89,983.20
  4. Step 4: Simplify right side
    93,066.60x = 12,546,825,488.64
  5. Step 5: Solve for x
    x = 12,546,825,488.64/93,066.60
  6. Step 6: Final answer
    x = 134,815.56

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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.