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Finding the Fourth Proportional to 636,889.30, 955,343.52 and 163,564.18

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Solution

The fourth proportional to 636,889.30, 955,343.52 and 163,564.18 is: 245,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,889.30 : 955,343.52 = 163,564.18 : x
  2. Step 2: Convert to fraction form
    636,889.30/955,343.52 = 163,564.18/x
  3. Step 3: Cross multiply
    636,889.30x = 955,343.52 × 163,564.18
  4. Step 4: Simplify right side
    636,889.30x = 156,259,979,467.11
  5. Step 5: Solve for x
    x = 156,259,979,467.11/636,889.30
  6. Step 6: Final answer
    x = 245,348.73

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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.