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Finding the Fourth Proportional to 225,291.13, 338,053.19 and 99,020.03

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Solution

The fourth proportional to 225,291.13, 338,053.19 and 99,020.03 is: 148,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,291.13 : 338,053.19 = 99,020.03 : x
  2. Step 2: Convert to fraction form
    225,291.13/338,053.19 = 99,020.03/x
  3. Step 3: Cross multiply
    225,291.13x = 338,053.19 × 99,020.03
  4. Step 4: Simplify right side
    225,291.13x = 33,474,037,015.40
  5. Step 5: Solve for x
    x = 33,474,037,015.40/225,291.13
  6. Step 6: Final answer
    x = 148,581.25

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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.