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Finding the Fourth Proportional to 304,194.80, 456,421.80 and 191,961.20

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Solution

The fourth proportional to 304,194.80, 456,421.80 and 191,961.20 is: 288,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,194.80 : 456,421.80 = 191,961.20 : x
  2. Step 2: Convert to fraction form
    304,194.80/456,421.80 = 191,961.20/x
  3. Step 3: Cross multiply
    304,194.80x = 456,421.80 × 191,961.20
  4. Step 4: Simplify right side
    304,194.80x = 87,615,276,434.16
  5. Step 5: Solve for x
    x = 87,615,276,434.16/304,194.80
  6. Step 6: Final answer
    x = 288,023.58

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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.