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Finding the Fourth Proportional to 323,326.17, 484,989.35 and 98,687.84

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Solution

The fourth proportional to 323,326.17, 484,989.35 and 98,687.84 is: 148,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,326.17 : 484,989.35 = 98,687.84 : x
  2. Step 2: Convert to fraction form
    323,326.17/484,989.35 = 98,687.84/x
  3. Step 3: Cross multiply
    323,326.17x = 484,989.35 × 98,687.84
  4. Step 4: Simplify right side
    323,326.17x = 47,862,548,456.12
  5. Step 5: Solve for x
    x = 47,862,548,456.12/323,326.17
  6. Step 6: Final answer
    x = 148,031.78

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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.