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Finding the Fourth Proportional to 225,297.56, 310,918.52 and 123,323.08

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Solution

The fourth proportional to 225,297.56, 310,918.52 and 123,323.08 is: 170,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,297.56 : 310,918.52 = 123,323.08 : x
  2. Step 2: Convert to fraction form
    225,297.56/310,918.52 = 123,323.08/x
  3. Step 3: Cross multiply
    225,297.56x = 310,918.52 × 123,323.08
  4. Step 4: Simplify right side
    225,297.56x = 38,343,429,515.44
  5. Step 5: Solve for x
    x = 38,343,429,515.44/225,297.56
  6. Step 6: Final answer
    x = 170,190.17

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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.