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Finding the Fourth Proportional to 327,989.60, 492,099.60 and 117,634.40

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Solution

The fourth proportional to 327,989.60, 492,099.60 and 117,634.40 is: 176,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,989.60 : 492,099.60 = 117,634.40 : x
  2. Step 2: Convert to fraction form
    327,989.60/492,099.60 = 117,634.40/x
  3. Step 3: Cross multiply
    327,989.60x = 492,099.60 × 117,634.40
  4. Step 4: Simplify right side
    327,989.60x = 57,887,841,186.24
  5. Step 5: Solve for x
    x = 57,887,841,186.24/327,989.60
  6. Step 6: Final answer
    x = 176,492.92

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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.