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Finding the Fourth Proportional to 547,840.66, 821,802.30 and 163,559.09

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Solution

The fourth proportional to 547,840.66, 821,802.30 and 163,559.09 is: 245,350.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,840.66 : 821,802.30 = 163,559.09 : x
  2. Step 2: Convert to fraction form
    547,840.66/821,802.30 = 163,559.09/x
  3. Step 3: Cross multiply
    547,840.66x = 821,802.30 × 163,559.09
  4. Step 4: Simplify right side
    547,840.66x = 134,413,236,347.91
  5. Step 5: Solve for x
    x = 134,413,236,347.91/547,840.66
  6. Step 6: Final answer
    x = 245,350.97

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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.