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Finding the Fourth Proportional to 352,802.73, 529,172.88 and 128,165.10

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Solution

The fourth proportional to 352,802.73, 529,172.88 and 128,165.10 is: 192,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,802.73 : 529,172.88 = 128,165.10 : x
  2. Step 2: Convert to fraction form
    352,802.73/529,172.88 = 128,165.10/x
  3. Step 3: Cross multiply
    352,802.73x = 529,172.88 × 128,165.10
  4. Step 4: Simplify right side
    352,802.73x = 67,821,495,082.49
  5. Step 5: Solve for x
    x = 67,821,495,082.49/352,802.73
  6. Step 6: Final answer
    x = 192,236.31

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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.