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Finding the Fourth Proportional to 225,241.56, 310,802.64 and 134,578.38

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Solution

The fourth proportional to 225,241.56, 310,802.64 and 134,578.38 is: 185,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,241.56 : 310,802.64 = 134,578.38 : x
  2. Step 2: Convert to fraction form
    225,241.56/310,802.64 = 134,578.38/x
  3. Step 3: Cross multiply
    225,241.56x = 310,802.64 × 134,578.38
  4. Step 4: Simplify right side
    225,241.56x = 41,827,315,790.92
  5. Step 5: Solve for x
    x = 41,827,315,790.92/225,241.56
  6. Step 6: Final answer
    x = 185,699.81

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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.