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Finding the Fourth Proportional to 93,102.40, 139,477.60 and 55,037.92

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Solution

The fourth proportional to 93,102.40, 139,477.60 and 55,037.92 is: 82,452.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.40 : 139,477.60 = 55,037.92 : x
  2. Step 2: Convert to fraction form
    93,102.40/139,477.60 = 55,037.92/x
  3. Step 3: Cross multiply
    93,102.40x = 139,477.60 × 55,037.92
  4. Step 4: Simplify right side
    93,102.40x = 7,676,556,990.59
  5. Step 5: Solve for x
    x = 7,676,556,990.59/93,102.40
  6. Step 6: Final answer
    x = 82,452.84

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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.