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Finding the Fourth Proportional to 295,564.12, 407,878.96 and 168,239.74

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Solution

The fourth proportional to 295,564.12, 407,878.96 and 168,239.74 is: 232,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,564.12 : 407,878.96 = 168,239.74 : x
  2. Step 2: Convert to fraction form
    295,564.12/407,878.96 = 168,239.74/x
  3. Step 3: Cross multiply
    295,564.12x = 407,878.96 × 168,239.74
  4. Step 4: Simplify right side
    295,564.12x = 68,621,450,181.87
  5. Step 5: Solve for x
    x = 68,621,450,181.87/295,564.12
  6. Step 6: Final answer
    x = 232,171.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.