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Finding the Fourth Proportional to 93,661.60, 140,492.40 and 58,640.80

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Solution

The fourth proportional to 93,661.60, 140,492.40 and 58,640.80 is: 87,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,661.60 : 140,492.40 = 58,640.80 : x
  2. Step 2: Convert to fraction form
    93,661.60/140,492.40 = 58,640.80/x
  3. Step 3: Cross multiply
    93,661.60x = 140,492.40 × 58,640.80
  4. Step 4: Simplify right side
    93,661.60x = 8,238,586,729.92
  5. Step 5: Solve for x
    x = 8,238,586,729.92/93,661.60
  6. Step 6: Final answer
    x = 87,961.20

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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.