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Finding the Fourth Proportional to 225,740.66, 311,523.00 and 123,767.68

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Solution

The fourth proportional to 225,740.66, 311,523.00 and 123,767.68 is: 170,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,740.66 : 311,523.00 = 123,767.68 : x
  2. Step 2: Convert to fraction form
    225,740.66/311,523.00 = 123,767.68/x
  3. Step 3: Cross multiply
    225,740.66x = 311,523.00 × 123,767.68
  4. Step 4: Simplify right side
    225,740.66x = 38,556,480,154.19
  5. Step 5: Solve for x
    x = 38,556,480,154.19/225,740.66
  6. Step 6: Final answer
    x = 170,799.89

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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.