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Finding the Fourth Proportional to 407,172.30, 610,996.59 and 170,495.16

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Solution

The fourth proportional to 407,172.30, 610,996.59 and 170,495.16 is: 255,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,172.30 : 610,996.59 = 170,495.16 : x
  2. Step 2: Convert to fraction form
    407,172.30/610,996.59 = 170,495.16/x
  3. Step 3: Cross multiply
    407,172.30x = 610,996.59 × 170,495.16
  4. Step 4: Simplify right side
    407,172.30x = 104,171,961,371.50
  5. Step 5: Solve for x
    x = 104,171,961,371.50/407,172.30
  6. Step 6: Final answer
    x = 255,842.46

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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.