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Finding the Fourth Proportional to 116,492.80, 174,476.60 and 81,588.24

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Solution

The fourth proportional to 116,492.80, 174,476.60 and 81,588.24 is: 122,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,492.80 : 174,476.60 = 81,588.24 : x
  2. Step 2: Convert to fraction form
    116,492.80/174,476.60 = 81,588.24/x
  3. Step 3: Cross multiply
    116,492.80x = 174,476.60 × 81,588.24
  4. Step 4: Simplify right side
    116,492.80x = 14,235,238,715.18
  5. Step 5: Solve for x
    x = 14,235,238,715.18/116,492.80
  6. Step 6: Final answer
    x = 122,198.44

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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.