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Finding the Fourth Proportional to 322,891.11, 484,354.86 and 98,258.85

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Solution

The fourth proportional to 322,891.11, 484,354.86 and 98,258.85 is: 147,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,891.11 : 484,354.86 = 98,258.85 : x
  2. Step 2: Convert to fraction form
    322,891.11/484,354.86 = 98,258.85/x
  3. Step 3: Cross multiply
    322,891.11x = 484,354.86 × 98,258.85
  4. Step 4: Simplify right side
    322,891.11x = 47,592,151,535.51
  5. Step 5: Solve for x
    x = 47,592,151,535.51/322,891.11
  6. Step 6: Final answer
    x = 147,393.81

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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.