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Finding the Fourth Proportional to 93,101.38, 139,673.94 and 30,771.88

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Solution

The fourth proportional to 93,101.38, 139,673.94 and 30,771.88 is: 46,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,101.38 : 139,673.94 = 30,771.88 : x
  2. Step 2: Convert to fraction form
    93,101.38/139,673.94 = 30,771.88/x
  3. Step 3: Cross multiply
    93,101.38x = 139,673.94 × 30,771.88
  4. Step 4: Simplify right side
    93,101.38x = 4,298,029,720.81
  5. Step 5: Solve for x
    x = 4,298,029,720.81/93,101.38
  6. Step 6: Final answer
    x = 46,165.05

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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.