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Finding the Fourth Proportional to 323,877.06, 485,808.30 and 146,336.40

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Solution

The fourth proportional to 323,877.06, 485,808.30 and 146,336.40 is: 219,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,877.06 : 485,808.30 = 146,336.40 : x
  2. Step 2: Convert to fraction form
    323,877.06/485,808.30 = 146,336.40/x
  3. Step 3: Cross multiply
    323,877.06x = 485,808.30 × 146,336.40
  4. Step 4: Simplify right side
    323,877.06x = 71,091,437,712.12
  5. Step 5: Solve for x
    x = 71,091,437,712.12/323,877.06
  6. Step 6: Final answer
    x = 219,501.31

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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.