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Finding the Fourth Proportional to 93,187.26, 139,669.92 and 53,662.50

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Solution

The fourth proportional to 93,187.26, 139,669.92 and 53,662.50 is: 80,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,187.26 : 139,669.92 = 53,662.50 : x
  2. Step 2: Convert to fraction form
    93,187.26/139,669.92 = 53,662.50/x
  3. Step 3: Cross multiply
    93,187.26x = 139,669.92 × 53,662.50
  4. Step 4: Simplify right side
    93,187.26x = 7,495,037,082.00
  5. Step 5: Solve for x
    x = 7,495,037,082.00/93,187.26
  6. Step 6: Final answer
    x = 80,429.85

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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.