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Finding the Fourth Proportional to 371,003.37, 512,116.53 and 225,742.83

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Solution

The fourth proportional to 371,003.37, 512,116.53 and 225,742.83 is: 311,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,003.37 : 512,116.53 = 225,742.83 : x
  2. Step 2: Convert to fraction form
    371,003.37/512,116.53 = 225,742.83/x
  3. Step 3: Cross multiply
    371,003.37x = 512,116.53 × 225,742.83
  4. Step 4: Simplify right side
    371,003.37x = 115,606,633,643.27
  5. Step 5: Solve for x
    x = 115,606,633,643.27/371,003.37
  6. Step 6: Final answer
    x = 311,605.35

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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.