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Finding the Fourth Proportional to 304,187.33, 456,330.21 and 126,712.28

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Solution

The fourth proportional to 304,187.33, 456,330.21 and 126,712.28 is: 190,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,187.33 : 456,330.21 = 126,712.28 : x
  2. Step 2: Convert to fraction form
    304,187.33/456,330.21 = 126,712.28/x
  3. Step 3: Cross multiply
    304,187.33x = 456,330.21 × 126,712.28
  4. Step 4: Simplify right side
    304,187.33x = 57,822,642,007.63
  5. Step 5: Solve for x
    x = 57,822,642,007.63/304,187.33
  6. Step 6: Final answer
    x = 190,088.92

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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.