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Finding the Fourth Proportional to 341,991.45, 512,899.29 and 161,899.29

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Solution

The fourth proportional to 341,991.45, 512,899.29 and 161,899.29 is: 242,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,991.45 : 512,899.29 = 161,899.29 : x
  2. Step 2: Convert to fraction form
    341,991.45/512,899.29 = 161,899.29/x
  3. Step 3: Cross multiply
    341,991.45x = 512,899.29 × 161,899.29
  4. Step 4: Simplify right side
    341,991.45x = 83,038,030,892.50
  5. Step 5: Solve for x
    x = 83,038,030,892.50/341,991.45
  6. Step 6: Final answer
    x = 242,807.33

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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.